SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)
 SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

The Top Tier of AMSOIL Synthetic Motor Oil

AMSOIL Signature Series Synthetic Motor Oil delivers extraordinary lubrication in all types of automotive gasoline engines. By combining industry-premier synthetic technology with AMSOIL premium additives, Signature Series Synthetic Motor Oil exceeds the higher performance demands of modern engines.

Package sizes include:

Quart Bottle
Gallon Bottle
30-Gallon Drum
55-Gallon Drum

Product Code: ASL • Brand: AMSOIL




MSDS Data Sheet French Data Sheet

Product Details Tech Data Reviews & Rating

Product Applications
AMSOIL Signature Series Synthetic Motor Oil is excellent for use in all types of gasoline-fueled vehicles. It is recommended for all domestic and foreign vehicles requiring any of the listed performance specifications:

Product Application Specs

• API SN (Resource Conserving), SM…
• ILSAC GF-5, GF-4…
• ACEA A5/B5, A1/B1
• Ford WSS-M2C946-A, WSS-M2C929-A
• Chrysler MS-6395
• GM dexos1™ (supersedes LL-A-025, 6094M and 4718M): Fortified with detergents that exceed dexos1™ sulfated ash specifications.

Product Description
AMSOIL Signature Series Synthetic Motor Oil delivers extraordinary lubrication in all types of automotive gasoline engines. By combining industry-premier synthetic technology with AMSOIL premium additives, Signature Series Synthetic Motor Oil exceeds the higher performance demands of modern engines. It withstands the stress of higher horsepower, higher heat and complicated emissions control systems. Signature Series Synthetic Motor Oil is engineered to outperform competitive conventional and synthetic motor oils. It delivers long-lasting performance and protection.

AMSOIL, the leader in automotive synthetic lubrication, produced the world’s first API-qualified synthetic motor oil in 1972. Trust the extensive experience of AMSOIL, the First in Synthetics®, to do the best job protecting your engine.

Extends Drain Intervals
AMSOIL Signature Series Synthetic Motor Oil can extend drain intervals far beyond those recommended for conventional oils. Its unique synthetic formulation and long-drain additive system are inherently stable to resist oxidation and neutralize acids over longer periods. Signature Series Synthetic Motor Oil is designed to deliver the best possible engine protection, cleanliness and performance over extended drain intervals. It reduces vehicle maintenance and waste oil disposal costs.

Oil Filter:

Any brand of oil filter may be used with Signature Series Synthetic Motor Oil. For maximum convenience, however, use an AMSOIL Ea® Oil Filter. Made of fully synthetic media with greater filtering efficiency and dirt-holding capacity than conventional filters, Ea Oil Filters are recommended for 25,000 miles/12 months or 15,000 miles/12 months, depending on application, which coincides with Signature Series' once-a-year drain interval. While Signature Series' 12-month service life remains intact if a non-Ea Oil Filter is used, the filter must be changed according to its manufacturer's recommendations.

Maximizes Fuel Economy
AMSOIL Signature Series Synthetic Motor Oil is designed to maximize energy efficiency for improved fuel economy. Unlike conventional oils, its uniform molecular structure helps it flow more freely and reduce friction between metal surfaces. Anti-friction additives are included to further improve energy efficiency.

Reduces Engine Wear
Signature Series Synthetic Motor Oil provides outstanding anti-wear protection. It has excellent viscosity film strength to separate metal surfaces and robust anti-wear additives to further reduce wear in metal-to-metal contact regions for improved engine life.

Reduces Oil Consumption and Emissions
Volatility (burn-off) occurs when oil gets hot, causing high oil consumption and emissions. AMSOIL Signature Series Synthetic Motor Oil exhibits an extremely low volatility rate; it controls volatility-related oil consumption and emissions.

Excels in Extreme Temperatures
AMSOIL Signature Series Synthetic Motor Oil resists thermal (heat) breakdown better than conventional oils. It is heavily fortified with detergent and dispersant additives to help prevent sludge deposits and keep engines clean. And unlike conventional oils, Signature Series Synthetic Motor Oil contains no wax, staying fluid in the coldest winter temperatures for easier starting, improved oil flow and reduced bearing wear.

Compatibility
AMSOIL Signature Series Synthetic Motor Oil is compatible with other conventional and synthetic motor oils. Mixing AMSOIL motor oils with other oils, however, will shorten the oil’s life expectancy and reduce the performance benefits. AMSOIL does not support extended drain intervals where oils have been mixed. Aftermarket oil additives are not recommended for use with AMSOIL synthetic motor oils.

SERVICE LIFE
AMSOIL Signature Series Synthetic Motor Oil is recommended for extended drain intervals in unmodified(1), mechanically sound(2) gasoline-fueled vehicles as follows:

• Normal Service(3) - Up to 25,000 miles or one year, whichever comes first.
• Severe Service(4) - Up to 15,000 miles or one year, whichever comes first.
• In all non-gasoline-fueled vehicle applications, extend the oil change interval according to oil analysis or follow the OEM* drain interval.

*OEM - Original Equipment Manufacturer

(1) Engines operating under modified conditions (non-stock) are excluded from extended drain recommendations. Examples include the use of performance computer chips; non-OEM approved exhaust, fuel or air induction systems; and the use of fuels other than those recommended for normal operation by the manufacturer.

(2) Mechanically sound engines are in good working condition and do not, for example, leak or consume excessive amounts of oil, are not worn out, do not overheat, do not leak antifreeze and have properly working emissions control systems. AMSOIL recommends repairing malfunctioning engines prior to the installation of AMSOIL synthetic oils.

(3) Personal vehicles frequently traveling greater than 10 miles (16 km) at a time and not operating under severe service.

(4) Turbo/supercharged engines, commercial or fleet vehicles, excessive idling, vehicles with more than 100,000 miles without prior continuous use of AMSOIL motor oil, daily short-trip driving less than 10 miles (16 km), frequent towing, plowing, hauling or dusty condition driving.

AMSOIL Ea® Full-Flow Oil Filters are designed for extended change intervals. They stop smaller particles, flow more oil and last longer than regular filters. For best performance, use AMSOIL Ea Full-Flow Oil Filters.

HEALTH & SAFETY
This product is not expected to cause health concerns when used for the intended application and according to the recommendations in the Material Safety Data Sheet (MSDS).

Click here to view the MSDS Data Sheet for AMSOIL ASL.

Keep out of the reach of children. Don't pollute. Return used oil to collection centers.

TYPICAL TECHNICAL PROPERTIES
Signature Series 100% Synthetic 5W-30 Motor Oil (ASL)
Kinematic Viscosity @ 100°C, cSt (ASTM D-445)10.5
Kinematic Viscosity @ 40°C, cSt (ASTM D-445)60.1
Viscosity Index (ASTM D-2270)166
CCS Viscosity, cP @ (°C) (ASTM D-5293)4426 (-30)
Flash Point °C (°F) (ASTM D-92)226 (439)
Fire Point °C (°F) (ASTM D-92)248 (478)
Pour Point °C (°F) (ASTM D-97)-51 (-60)
NOACK Volatility, % weight loss (g/100g) (ASTM D-5800)6.9
High Temperature/High Shear Viscosity
@ 150°C, 1.0 X 106 s.-1), cP (ASTM D-5481)
3.2
Four-Ball Wear Test @ 40 kgf, 75°C,
1200 rpm, 1 hr, scar diameter, mm (ASTM D-4172)
0.35
Total Base Number (ASTM D-2896)12.6

Did this product meet your expectations?

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Product Name: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)
Current Rating: 4.96 out of 5 stars
Total Votes: 346 vote(s)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by handyman: space

beening buying since 1980

I have used amsoil products in all the vechile i purschase over the years including my motor home some of the vechicles were diesel some were gas. i used it in them all.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Believer: space

It really does matter

I began using Amsoil back in the 80's after reading their claims vs conventional oil.

After some years, I transitioned to one nationaly recognised synthetic I could buy at a big box store...it was about the same cost, a little more convenient, and I reasoned, probably good enough.

In the process of time, I bought a 94 Miata. After some work, it ran well, nearly 30 mpg, but the lifters were noisey. To quite the lifters, I took each one apart, cleaned them, and reassembled all 24 of them with 10-40 high mileage oil of that one brand of synthetic.

Much to my surprise, the lifters were now much worse.

I immediately changed the oil to that same one brand, but 0-30. This made the lifters quieter, like they were before I cleaned them.

On a lark, I decided to try Amsoil 5-30 in the Miata. I could not believe the difference! I had done all that work, but all I needed to do was pour in a higher quality oil. The idle was now smooth and quiet; so much so that when I sold the car to another Miata enthusiat (advertising the smooth and quite engine at 185,000 miles), all they did before paying my asking price was open the hood to see the engine idling.

Amsoil. I've seen it make a diffdrence.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Jason C: space

Amsoil Only!

I switched to amsoil in 2007 and have never looked back. It's the only Brand I trust in my vehicles.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by JRobin: space

This is the only Oil I have used for many years.

I use Amsoil ONLY in my truck, car, Harley, and outboard engines!

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by T BEAR: space

ONE YEAR OIL

MY FAMILY ALSO USES IT HOW ABOUT THAT

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Woodster: space

I buy this product every year.

I use the oil filter and the 25,000 mile oil for the mileage listed or once a year, whichever comes first.
The once a year always comes first for me.
Thanks for such a good oil.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Doctor D2: space

Great oil!

Bought the oil. Best purchase decision ever. Engine is purring like a kitten, with the best mph ever.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Chopper: space

I'm relying on the reputation!

I only came to know and use Amsoil from the previous user of my Nissan Titan. He stated he had used Amsoil in it after he bought it. Not wanting to change to a different oil even though I had always use Castrol or Mobile 1, I decided to check on this Amsoil oil he was using. I have to tell you I truly believe this has to be a better oil then what had been using in my last 45 years of driving! With all the testing that Amsoil does on their oil and what it goes in really impresses me at they know oil and they really truly know synthetic oil! I am proud to display my Amsoil sticker on my back windshield of my truck knowing that I am part of a elite group of guys that are wanting the best oil for their engines!

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Daniel: space

Proven benefits

I've been using this AMSOIL for several years now. I saw immediate improvements in my daily commuter just from switching to their oil & filter

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Tim: space

Only Oil I run

I run the full line of Amsoil synthetics in all my vehicles, my F150 Ecoboost is my primary work vehicle, I drive 7 to 8 thousand miles a month, I am a regional manager with a multi state territory, Amsoil makes excellent products Ive never had any issues

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by PF: space

Best of The Best!

I have been using Amsoil for over 25 years, although somewhat pricey, well worth it! I do oil changes every 10,000 miles and have put as much as 275,000 on my car without any engine knocks or breakdowns. I realize they recommend going 25,000 between complete changes, but I prefer to go every 10(k). This is the best of the best synthetic oil on the market!!

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Jesus: space

Signature 5W30 review

Excellent product, exceeds my expectations and I do change my oil and filters as Amsoil recommendations.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Tom: space

good stuff!

Keeps my Jeep running good

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Rick: space

Amsoil Works!

My 07' Toyota FJ Cruiser runs great on this product, much better than any competing brands. I use signiature series and put a high amount of miles on my truck in a very short time so I change my oil around every 5-6 thousand miles. Fast shipping. Good customer service. Definitely a quality product and a smart purchase for any vehicle owner.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Frontier man: space

Oil for truck

Regular oil for my truck.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Lucas: space

Is there really a review needed on the best?

This oil was purchased for a 2016 Corvette. They wanted the best, that's what they got

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by BobWol: space

Amsoil Products and Support

I have been using AMSOIL products since 1990. A mechanic introduced me and I have been using them in all of my vehicles ever since. As an example I started using AMSOIL in my 1988 4-Runner at 80,000 miles and at 225,000 no leaks and no burning. I have had occasion to call support to cross reference oil filters and have been very successful. Thank you!

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Too many toys: space

Great Product

Yes Amsoil products in all cars, trucks, equipment, motorcycles, and a boat. Never had a problem. Had to do a top end rebuild on a motorcycle with over 300 hours on it. Valves were worn out but, the cylinder looked brand new! Amazing product.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Dave 300: space

Highly Recommend this oil.

Since I switched to Amsoil in my wife's 1.6 liter ecoboost Escape it has been running smoother and quieter than with a competitor's oil.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by RCinNM: space

This is the only brand oil I use!

I first used Amsoil in my GMC Yukon XL. I immediately noticed the difference. More power and better gas mileage. Since then, I've been using Amsoil in every vehicle I own and everything I own that has a motor: tiller, lawnmower, chainsaw, trimmer, weedeater, pressure washer, 4x4 truck, small SUV and my GTO.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Tiger: space

Will keep using Amsoil in all my rides

The product holds up under extreme heat and saves you repair cost.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Mike: space

Great product

.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by john: space

excellent

excellent

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Diesil: space

The 5w30 works well for me

I ave run amsoil 5w30 in my 05 2500 silverado for 12 years. Still runs like it brand new after 150,000+ miles. I change oil about every 6,000 miles and never had any wear problems or loss of power problems.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by M.Winter: space

Great as always

I've used and sold Amsoil products for about 18 years exclusively, without one issue. At least 100,000 miles on three different cars and one almost 170,000. (2002 ML 320). Once a year oil changes are the norm.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by cardi52: space

Great Product!!!

I only use the best oil and it's this brand will always use this oil and only this oil best I've come across really makes my vehicle run strong!!!!

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by TerryRH: space

Smooth

Really smooth and quieted the motor a good bit. About 3k on this oil change and it still runs as good as the day I changed it. It hasn't started to break down like some other oils.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Gunner: space

Love these products

For maintenance in truck. My husband first used them in the 80's. Got away from Amsoil due to costs. Now back with them. Met a man who took a course just on oil products. Amsoil came out way on top., Now use oil, oil filter and air filter Amsoil. Have complete confidence in the superiour quality of these products.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Ode: space

I would buy this product again

Use this in my truck engine. It's a great product. It keeps my motor clean.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Pipes p: space

Best oil

Ive been using amsoil for 25 years. Its pricey, but i pay it for a reason!

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by David the Adventurer: space

Perfectly Satisfied with Amsoil

I have used this in my gas fired cars and trucks since 2002, no problems at all.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by CJNREMTP@28: space

Excellent Oil

This oil is spectacular! Somehow I failed to check the oil level in my wife's '08 Honda Accord 3.5L V-6 and when I did check it, it only had 2 out of the required 4.5 quarts! ; o I have not noticed any damage to the engine system since and count my blessings as she would have kicked my rear if anything would have happened to her beloved car! Thank you Amsoil for such an awesome product!!! You are a wifesaver!!! ; ) This idiot makes certain to check the oil level in her car now!!!!!

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Reg Coderre: space

Excellent product. I use Amsoil in all my vehicles.

Very good product.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Erff: space

5w-30 signature series

Always use this in my vehicles. Best oil I've come across. Amsoil or bust

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by SDJazzMan: space

The quality is great and it lasts a long, long time.

I pulled into a gasoline station and they actually asked if I wanted them to check the oil. I knew it was okay but said - sure go ahead. When the attendant pulled out the dip stick I asked him to guess how many miles I had on that oil. He replied without hesitation and said that I had just changed it. When I told him that I had almost 5000 miles since I changed the oil, he couldn't believe it.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Jin: space

Highly recommend

C7 Stingray, 2017 Equinox ,, 2009 Vibe

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by charlie k: space

love amsoil

love that i can extend oil change intervals

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Me: space

Excellent

I only use Amsoil. It is the best

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by George: space

This oil must work well

I purchased a used 1996 Chevrolet C2500 with 341,000 miles on it. The previous owner said that he only used AMSOIL. So I drove the truck for a thousand miles then changed the oil with AMSOIL. It must work, the truck has the original engine, original transmission and the original exhaust system

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by kirbstoy: space

Long-time user of Amsoil

I know exactly how Amsoil will perform in my 2017, F-150, 3.5L/twin turbo. I have used Amsoil for decades and have never had an oil-related problem with any of my engines. Amazing chemistry...that's for sure.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Exceptionmode: space

Always great

Simply perfection in motor oil.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by El viejito: space

Keep's my trucks running like new

I buy this oil for my family SUV and so far is doing the job done

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Francis Gamache: space

I've recommended to all my friends and family members!

I've never seen a better product than Amsoil! When you use the Amsoil oil you can hear and see the difference at the first use! I recommend to all my friends and family members!

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Jim: space

My cars are all old and run well on Amsoil.

I use it in all my vehicles. Since none of of them go over 25,000 miles per year, I change the oil every March with Amsoil filters. The engines stay clean and, along with occasion PE, they all run very well.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Bullman: space

I would buy again, & again.

Use in all my vehicles, and it definitely helps with the fuel economy.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Lee: space

Only buy AMSOIL lubricants

Normal, quick, and easy order process and quick receipt.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Gi: space

Best oil on earth

I've tried all brands of oil from Mobil1 to Royal Purple and by far Amsoil is the best. I can really feel and see the difference. My engine runs cooler with Amsoil and even when I changed it at 25,000 miles it still looked better than all the oils I tried and I changed them at 5,000 miles.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Heal: space

Great

Great oil I change out at 7500 on a GMC Terrain 3.0L. Never had any problems summer or winter. I have 50,000 on engine no serious issues with engine other than regular oil changes. Very happy with this oil

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Popo: space

Great Results

The enginer runs so much smoother.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Charlie TUNA: space

Great oil!!

Been using in my 2004 Chevy Silverado for years!! Works great.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by SwanyWI: space

Awesome Oil.

I've used this oil in my 2004 Caravan from the point of new. I used it for work and changed oil in the 20,000 to 25,000 increments. The van now has 247,000 on it an it leaks a tiny bit but uses none. At 8,000 miles I need to add 1/2 a quart. No problems here and I use it in all my vehicles and equipment.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Pizza: space

No more burning off like other synthetics

I was using another full synthetic because that's all I could find in our area. Noticed the other brand would burn off and I'd have to add oil about every 2nd tank of fuel. I switched to amsoil and the burning off stopped. Noticed no difference in fuel mileage or HP gains but like I said, I was already running a full synthetic.... Good stuff!!

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Dave: space

Great as always!

I use Amsoil in everything, so perhaps I'm a tad biased. But the 5w30 Sig Series does great in my Mazdaspeed Miata turbo & Ecoboost F150!

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by AcuDoc: space

Will buy this product again.

Much better than expected.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by The Celica Driver: space

The One Oil Brand I Trust

I use Amsoil signature series 5w-30 on my Toyota Celica GTS and it makes my car runs great. My car is around 250k miles and I don't have oil burning issues on my vehicle. During the winter time it starts smoothly and it doesn't hesitate to crank. Oil intervals can go longer than 4k to 5k but I usually change them at that point since I drive over 70 miles a day in rush hour. Great oil and great pricing.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by JJ: space

Perfect for high-performance, turbocharged vehicles

I used this in my '15 WRX which requires a high shear stability, synthetic oil. This oil was recommended by many websites and forums as one of the top oils you can use. Worked great while I had the car but I plan on putting it in my new Infiniti as well.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Horse-n-heeler: space

Great Product

I have been using Amsoil for over 35 years. Our current commuter car (120 miles per day) has 265K miles and still runs like a top. Uses very little oil (less than a qt per change)

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by none: space

i am very pleased with Amsoil.

I use amsoil, car, pickup, equipment, lawn mowers, tillers, and chainsaw. Protects engine and less time changing oit.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Carlitos: space

Gas mileage

I have a 2008 Lexus v6 and recently checked mileage on 300 mile trip.
Checked and double checked, 34 plus MPG. Amsoil Signature in motor with KN Air filter. VERY IMPRESSED!! Carlitos

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by M8ttix: space

Great stuff

Used to run this in my stock sti motor. Now it's built and I run the 5w40 Euro. Love all your stuff never had a issue.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Timber: space

AMSOIL

Have used AMSOIL OIL for years. 2003 SVT FOCUS has 332,600 miles on it. 2011 SAAB has 105,200 miles on it. Excellent products.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Barney: space

Amsoil Signature Series is the absolute best

While I was apprenticing to be a mechanic in the early 1980's a friend of mine challenged me to a comparison test between Amsoil 100% synthetic motor oils and conventional oil. As a result, I switched to Amsoil and have used it for over 30 years in all of my 4 stroke, 2 stroke, and diesel motors. It lasts longer, doesn't have the viscosity break down, and is a better lubricant than other oils.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Robert: space

Will buy again

Been using this oil since 2000 love it

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Pdizzle: space

Excellent Product

I have been using this product since I bought my low milagr 2004 Mustang cobra back in 2013. I have trusted this product to protect my factory supercharged motor and it has done a great job. Happy with all my amsoil products. Loved there oil in my ATV's when I was younger and now I use there stuff in everything.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Moparsean: space

I have used this oil for years for several vehicles

I run this oil the full year or 15,000 miles as i fall under severe service useage guidelines. It has always kept the inside of engine clean and i rarely add any oil,it performs well,oil analysis comes back great. Both vehicles i use it in have high miles and i know its keeping them running well. Highly recommended. Amsoil is the best oil in my opinion. I even use amsoil in my lawnmowers. Synthetics are not all equal. This is the best out there. I wrench for a living and have seen the effects of using sub par oil.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Q: space

Just as described

I've been using this in all my vehicles since 2010, I'll never use anything else again. I do yearly changes and even after being in the motor for that amount of time it still has a bit of color.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by LGC driver: space

Exclusively use AMSOIL all vehicles

Have used AMSOIL exclusively for 15 years in my vehicles. Have never had an oil related issue.
This oil is especially good in my F150 eco boost engine. Smooth, quiet, economical performance.
Best of the best!!

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Vince: space

Long term use & I keep coming back

My car has 140k miles and I've been changing my ea amsoil filter every 10k miles (rated for 15k miles) and my oil in my vehicle every 20k miles (rated for 25k miles) without fail. Excellent results and cheaper in the long run when compared to other conventional products.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Todd: space

I'll buy more next year.

Good value for 12 month protection.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Ironrider1550: space

Another Great Oil

I use this in my chevy truck. I love the extended drain as it helps save me money and time. The oil still feels great when drained.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by HJH: space

Cheaper than an engine repair.....

I have used this product in my 2 vehicles since their first oil change. My 2007 Tahoe has 191,000 miles on it and I expect it will perform for many years to come. Although the oil and filter are rated for 25,000 miles or once a year, I still change oil and filter every 6 months; very reasonsonable amount to spend for a bit of extra insurance. I assume my engine is finally broken in since it regularly achieves 20 mpg on the highway.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by mm: space

great oil

keeps my engine running great

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Tu D Truong: space

I should use it for life my car

I really like so much AMSOIL suythetic oil products

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Shawn of Indy: space

I trust Amsoil's products

I've been a customer for ten years now and have always used the Signature 5W-30 in my vehicles. I still own the same vehicles and change my oil once a year. I don't worry much about tracking the mileage but it usually ends up being 16,000 +\-. I'm confident their lubricant is protecting my engines at this mileage and only changing it annually has actually saved me money.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Skylukewalker: space

Good protection for the lazy car owner

I don't really have time to change my oil every 2 to 3 months, so I use amsoil, it is the best bet to keep my car running even if I only change the oil once a year. And I actually save money using Amsoil's best oil once a year than to use a cheap oil every few months. ...a no brainer if you ask me.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Viking Bob: space

Great Oil

I have been using Amsoil since the early 1980s all my vehicles, recreational toys, and tools. I have never had any issues. The cheapening of the word "synthetic" by Castol winning their court case has made it less clear what one is actually buying when the oil is labeled synthetic. Amsoil pioneered the synthetic oil industry and can still be trusted not to hide behind using the word "synthetic" as only a marketing ploy. I also use the 0w20 oil as specified in my newer Mazda 6. I do all my own maintenance and will continue to use only Amsoil.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by The Flash (Gordon): space

I use have used only Amsoil products in all my vehicles.

I have been using Amsoil products for 18 years. I started with my 1998 Chevy K1500 Suburban which I bought new and started using Amsoil oil when it had 38,000 kms. It now has 423,000 kms and is running as strong as the day I bought it.

I firmly believe that Amsoil and regular maintenance, which I do mostly myself, are the reasons why this truck has lasted so long and has run so well for all these years.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by SilverEvoX: space

I will absolutely use this type product again

I use it everytime I do my oil change. Car runs smoother and better.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Retired Sergeant: space

Love this stuff!

I really love this stuff. I used to worry about my lubrication needs. Always thinking, my brand new truck isn't getting enough protection. Now, I don't worry about a thing until 10K or 15K depending on how I use my truck. Going from the Midwest to the west on vacation always concerned me because of the difference in Temperature and terrain. Now, I know my truck is protected.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Revrat: space

I believe in this product, and will continue to use it.

I use this product in all my vehicles, and have converted many friends to its use. Engines run quieter and seem to run smoother after converting to Amsoil.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by JKman: space

Greatest oil ever!

Put Amsoil Signature Series 5W-30 in our 2016 Wranglers and noticed both an increase in mileage and an end to the occasion start-up tick which happened on occasion. Never using any other oil than Amsoil in the future.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by D: space

Good deal

So far so good

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Wayne: space

Best Oil Availabe

It is expensive, but worth every penny. Instead of replacing every 3000 miles, it is once a year!

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Big D: space

Best oil bar none

Interval of change time is great. Better gas mileage in my pickup. Works great great product.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by KP: space

Oil

Great oil.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Mcm: space

Only oil product I use.

When I first bought my vehicle used, the oil changes looked super sludgy, and the gas mileage was pretty poor. After 1 oil change with amsoil full synthetic with the ea filter, it is clean clean clean and I have 1mpg better fuel mileage after a little over 5000 miles. With any other oil, it would be black and gritty looking. I also like the extended drain intervals provided with this oils capability, so I only have to change my oil once per year.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Mike: space

Excellent Product

Great product. Prolongs engine life.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Bigtrain: space

Never a problem

I have 170,000+ miles, after the 36,000 mile factory warranty ran out it has been Amsiol ever since.
I use the 25,000 mile signature series with never a problem. I have to change the filter half way thru because I can only find a 15,000 mile filter, I have to add between 1/2 and 3/4 quart at this time. I always change oil around 24,000 miles unless I have been pulling my 7,000lbs for over 1,000 total between changes then for piece of mind I change at 20,000 miles. I drive a 2008 Toyota FJ Cruiser and take it off-road

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by EB: space

Best products on the market!

I've used AMSoil in all my vehicles including my Harley's since I purchased them, used or new and I will never go back to off the shelf products again. The cost difference is insignificant so it only makes sense to use the best.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by pilgrim: space

The only oil I have used sence I purchased my truck.

Best oil on the market.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Scott: space

All I use

Had some other people talk about benefits of Amsoil. Started using it in my '98 Ford Ranger with 108,000 miles on it. Sent in samples and at 185,000 miles truck was cleaner engine wise then it was at the start. At about 265,000 miles sucked a valve so had son put new heads on it. When tore into engine was no sludge or carbon on top of block and the timing chain looked like brand new. Son traded the truck in on newer one at 365,000 miles and still was running good. I use Amsoil in all my vehicles and yard equipment.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by JP: space

Top Performance for your engine.

I added Amsoil 5w30 Signature to my 08 350Z HR. I noticed an increase in power immediately. I'm running against cars with much more power, and outperforming them, thanks to what feels like quicker acceleration through the rpm range. I recommend this product for all engines, as no other oil comes close.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Weekend mechanic: space

I would buy this product again and use it regularly

I use this my children use it in my friends use this. We enjoy the fuel savings less engine friction and longer service intervals it really saves a lot of money.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Joe: space

I'll keep buying this product

I use this oil on all my small engines. My compressor used to trip the circuit breaker regularly until I switched to this synthetic blend. Hasn't tripped a breaker since even in the winter

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by racerbug: space

I would buy this oil again

I put Amsoil in ALL of my toys.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Jon: space

Always buy my oil from here

Last time we had to order amsoil we received free shipping. That just added to the great deal we already get from them. We've been using amsoil products in or vehicles for 2 years now and nothing else compares.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Tim: space

Must have

Longevity, reliability and ultimate protection

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Biner: space

Only use the best.

Use this in my wifes Ford Explorer 4x4. It's got over a 100,000 on it and never had a problem and it run's like a top.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Steve: space

Best Oil, Period

I have been using this oil for 10 years on my 2006 Corolla, change the oil once a year, now have 168000 miles and still going strong

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Chief: space

I'd buy the and will buy this again

I use 5w30 and 5w20 in all of my cars

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Brian: space

Great product

Great product,great price

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Schlogg: space

Great products

I've been using AMSOIL products for 3 years now, started with engine oil and have also explored brake fluid, gas additive, grease, tranny fluid and gear oil. I began with the XL line of products then moved to the signature series and know that is all that I use. I would recommend AMSOIL products to anyone.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Johhnystock: space

Top of the top

I trust this oil. Running strong since one year. I use Zrod since cammed because of extra zinc but woulnd mind running Signatures series anyway.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Bud: space

Use a soil in all of my vehicles

Best oil and value imho.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Chuck: space

This is the oil I use in all my cars

First and best synthetic moter oil. I keep my vehicles past 90,000 miles so I need a oil that will make them last.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Bob: space

Best oil you can get

I have used this oil for years. The yearly or mileage intervals are great and saves money plus I get the best protection for my truck. I study oil test and Amsoil is the highest rated product.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by JimmyJom: space

Love this product

I was using Mobil 1 Extended then I tried this. Man the truck runs smoother than ever, almost like new. I will never go back, all Amsoil from here on out!

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Grizzle: space

Makes my '06 Aucra TL VERY happy

After I bought this car, I put in its first fill of Amsoil SS at 3,000 miles to get rid of the "dinosaur juice". Now after 230,000 miles, it will still get nothing but SS for its NEXT 230,000 miles. It runs PERFECTLY!

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Jigger: space

AMSOIL is great

Have used AMSOIL sysnthetics for years. Have had new Tahoes and Buick Enclaves into shops and entire fluids changed to AMSOIL.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by MPM: space

Excellent Experience as always

I love your company. The best auto products on the market hands down and you always deliver without a glitch. Order is always accurate and the packaging is perfect. Thank you for the great service!!!!!

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Nick Mac: space

Love it

Use it in my Lexus with 290k on the clock. Smooth. Nice viscosity. Now use it in all my cars- always will.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Tinkerwatch: space

Great product

I use this product in all three of my Toyotas.
It's a great motor oil! My engine seems quieter and smoother, I have not used it long enough yet to tell if my mileage has improved or not. I plan to continue using it from now on.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Jr: space

Best product for Evo X

I use the product for my oil changes, I've used many different oils but no one comes close to this. Loyal customer to this oil

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by none: space

I buy this product for both my vehicles

I have read all the material on oils . I use amsoil in both my cars, truck and both harley davidson motorcycles

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Red: space

F-150 oil change

Soon as I changed the oil I felt a difference in throttle response and shifting felt great little better mpg aswell

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Luke: space

AMSOIL signature series

It run a lot smoother than the P**$oil full synthetic I used during my last oil change and is definitely better than the dino juice it had in it when I bought it

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Steve 1954 Chev: space

I'm sold on this product!

I have been using this oil for years in myc1997 Honda. 235,000 miles later it runs like a gem! Nothing but the best for my cars and truck. Quality lubricant.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Tacoma Bob: space

Best Oil

Used in all my P/U and SUV for past ten Years

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Keyzbum: space

This is the best and the only product I buy

This product lasts just like it says , a great product

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by beast: space

Superoil!

I been using Amsoil Signature Series oil more than 10 years and long story short-i LOVE IT!!! If you care about your ride this is oil for you. HIGHLY RECOMMENDED!

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Gump: space

Best oil there is

I have run Amsoil exclusively in everything I have that runs or moves. I'm convinced it has greatly extended the life of all the vehicles I own including my drag car. 8 seasons without a freshen up, and still going strong. Keeps internals spotless clean too. 40 below or 120 above, it's the best there is.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Freeman: space

It's the only oil I use . Try to get when shipping is free.

Shipping is expensive when I buy in bulk.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by ulcivy: space

This is only the oil I am using for more then 10 years

I am using it for all my cars and trucks and I am saving a lot of time and money. Not to mention that my cars run good in all seasons.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by JR: space

Great product, Great protection

I began using Amsoil products over a year ago. So far I have converted all my vehicles to Amsoil. Since changing to Amsoil, I noticed that the engines run much quieter and my gas mileage increased an average of 5 mpg. I like the extended drain intervals and the protection I get. I have two high mileage vehicles and I noticed that the oil is cleaner when I check the dipstick and it's not as dark as it was when using regular oil. I highly recommend this oil.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by tonyturbo: space

I would buy this product again

After 6000 miles oil is still clean

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Big johnson: space

This is the ONLY oil i use in my truck!

This oil stands up excellent in my vehicle, the level never drops and even the colour of it doesnt change much between oil changes, never black when it comes out! Fantastic oil!

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by HD: space

Really enjoy n depend on amsoil

Use it in my 09 chevy z71 4x4 since new
Use in my wife's car.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by d: space

oil

great product

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Mtnbiker: space

Fantastic Oil

I've been using this oil for 3 years now. My 2007 F150 has 135000 on it now. I like only having to change my oil once a year.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Gene: space

Signature Series 10W-30 Synthetic Motor Oil

I have been using Signature Series 10W-30 Synthetic Motor Oil in my vehicles since 1998. I still use it in my 1997 Dodge Dakota pickup, which now has just under 120,000 miles on it and it still doesn't use any oil, even though I only change oil every 15,000 miles, and only change the filter every 7,500 miles. I was using this same oil in my 1998 Dodge Intrepid sedan until we were involved in an accident with it in 2012, at which time the vehicle was declared a total loss (with just over 214,000 miles on it, and it still wasn't using any oil, even though I only changed oil on it every 20,000 miles, and only changed the filter every 10,000 miles. Up until the time the car was declared a total loss, the engine had never been worked on for anything other than changing the spark plugs every 100,000 miles. We would still be driving it if it hadn't been for the accident that made it a total loss.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Rob: space

My Oil

Been using this oil for 12 years.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Big L: space

Only product I use

I only use Amsoil in all my vehicles. Amsoil extends my oil change intervals and improves my engine performance. I'm well pleased with how this oil performs against conventional oil that I used in the past.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Chuck: space

I use Amsoil for all my vehicles.

I put 100 miles a day on my daily driver. I purchased it with 40,000 miles on the odometer now it has 84,000 miles on it. 4 qts go in, 4 qts come out.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by A-Rod: space

I wouldn't buy anything else

I've been using Amsoil for years more people need to use it and stop buying cheap products!

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Brian: space

Amsoil products

I love all Amsoil products very satisfied a longer duration before changing oil ever 6 to 7 thousand better than every 3000, with conventional oil.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Airwreck Nest: space

Liquid gold

Eliminates rough idle and extended change intervals beyond what a typical customer expects. I get great feedback from my customer base and it saves them money while protecting their engines with premium product.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by walt: space

I am using Amsoil in all my vehicles

From my work vehicles to my play vehicles I use Amsoil in them all for peace of mind

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by James Born: space

Great product!!!!!!!!!!!!!!!!!!!!!!!!!!!

Really like it!

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Bobby Mota: space

Only oil I use

It's the only choice I make for my truck. Only down side is that not many local stores carry amsoil so to buy a top up litre is hard to find. I just buy one extra.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by J J: space

Definitely keep buying

Have switched to amsoil on our vehicles. Love the 15k mile change interval.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by GRN: space

New user

I'm a new user of AMS products but am impressed with the ratings.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Olds455: space

Great to have extended service intervals

Not only do I believe Amsoil extends the life of my vehicles, the extended service intervals keep them out of the shop and me off my back for longer periods of time. When you commute long distances, like me, 3000 miles comes Way too quickly.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Lente Loquito: space

Simply the best oil on the market

I have been using AMSOIL since the early 1990's. Need I say more?

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Nick: space

I would buy this product again

Everything about this oil is great. I drive a 98 Toyota Camry that contains an engine toyota was sued over for its ability to make slude and lead to engine failure. Amsoil does not recommend using the extended drain interval (15,000 or 1Yr) with this engine however I only change the oil twice a yr putting on at least 7,000 miles per oil change. I had a 97 Toyota Camry with 280,000 miles with the same engine and the only thing that killed it was a car wreck. My current 98 only has about 140,000 and I expect it will last every bit of the 280,000 and beyond.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Teddy: space

Amsoil sets the standard in the lubrication industry

I had my 1964 Corvette project car all greased and lubed when I learned of Amsoil and then drained and replaced the oils and re-greased everything!

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Vig: space

Great product!

Use it in my 2 vehicles, lawn mower. Great staff, only Amsoil!

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by MLH706: space

Used for years.

I've used Amsoil Signature Series 5W-30 for years and will continue to do for years to come.

I first started using it simple as an avoidance to constant oil changes. Putting around 25-30,000 miles a year, it made more sense to change the oil once and the filter every six months, rather than wasting time changing conventional oil at every 3,000 miles. Many told me it wasn't safe to do so; however, I've never had any issues doing this.

First car...1993 Chevy Corsica 3.1L V6. 236,000 miles when traded. Engine ran perfect, car body rusting out.

Next car...1998 Subaru Outback 2.5L 4 cylinder. 263,000 miles before the body rusted apart.

Currently using in 2004 Subaru Outback 2.5 around 180,000 and Dodge Ram 2500 5.7 Hemi 130,000 miles.

As you see, long engine life with minimal time required for oil maintenance/changing, not engine issues, various engine sizes.

All of these vehicles have their oils changed once a year. Filters changed at oil change, and then again at six months.

Strongly recommend, especially if you like the simplicity of changing the oil only once a year or put many miles on each year.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Cadprof: space

Great Products!

I have been purchasing Amsoil products for about fopur years now, everything I own that has a motor and transmission contains Amsoil products. Great products and a great price form a great company.
Will always buy my supplies here.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by BIG BABA: space

AMSOIL 5W30 Synthetic Motor Oil

There is know beating AMSOIL. I have been using AMSOIL for 10 years and bank on how it is made and what it is made for. All their products are unbeatable in my eyes. Best mileage guaranteed and warranty no one can beat. Every car, truck, boat, big rig and more totally unbeatable for quality and service.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by TCS33: space

I save money with Amsoil !!!

Instead of changing oil and filter 3 times a year on my wife's 2010 Impala, I just change it once. And I am using a better quality oil and filter, when I use Amsoil !!! thanks

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Mike: space

It is the best

I use thus product in my recently purchased truck. Mileage got better and engine ran smoother. I love it. I have been this product in mg last three used vehicles with outstanding results.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by jg021v: space

Synthetic Quality

Oil change intervals last more than six months. I prefer AMSOil 5w30 Synthetic Motor Oil over any other. "True Synthetic."

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by MadMatt!: space

Only the Best!

got another 70000 miles out of it .I was sold been using it in every vehicle sence. When you do all your own service work yourself you notice where n tear on internal parts, and i've got to say the products from amsoil When you rely on your truck to make a living and cant afford break downs. You only put the best product in it. I've used other products in the past. but one slipping transmission and switched to amsoil products. Well offer the best protection i've come across "greasy" Hands Down Matt.S.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Scott: space

Best oil period!

I run this oil in my truck and car. I swear by it!

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Gary the Titan Beast: space

The best of the best!

I've been using the Signature series in all my vehicles for 5 years. I live in Alberta, Canada & it gets to -40 degrees Celsius never a problem starting & im so confident & I proved it with our 2002 Nisssn Xterra 15 years old & engine prob will go for another 15 years!

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Rumpthump90: space

Bought this every time

I have bought amsoil 5w30 for all three vehicles I have owned, AMS has never let me down. I currently run this in my 2001 Chevy suburban with 180k miles and still running strong.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Marc: space

Works well

Easy to use

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Redidan: space

I will continue to buy this product

I use this in two vehicles a 2001 blazer and 2003 silverado hd

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Leeski: space

A miracle

I got in an accident a while ago. I got out of my truck to exchange driver information with the the other driver and noticed all the antifreeze leaking out of my truck do to the accident. When I seen this I went back to shut off the truck that was still running so the engine wouldn't overheat but the door was damaged and wouldn't open! My truck stayed running for over an hour with no antifreeze in it yet the temperature gauge didn't move, amazingly it never even came close to overheating. I owe it all to Amsoil''s superior oil that saved my engine! My truck is still running like new with over 380,000km! I'm a firm believer in the Amsoil line up and use it in everything that I own!

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Chris: space

Oil

Excellent product, helpful staff.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by TOD UMBRELLA LLC: space

Awesome!

Uses all the time

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by n/a: space

I would use this product again.

Easy to purchase on line, which saves me a trip to the parts store, comparable in price with other quality synthetics, and it pours and looks good too. I use this product in a new Ford Escape with the 2.5 Eco boost engine, and have noticed an immediate small increase of 1.5 to 2 m.p.g. My only concern is about 20K oil intervals. Hopefully my on board computer will tell me when it's ready to change as well.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Paul: space

I would purchase this product again.

Great product. Been using Amsoil for about ten years. My only complaint was the shipping charge. Amsoil has been running specials for preferred customers were they've been offering free shipping on orders over over a certain amount. When they offer this deal that's when I place my order.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Tyson: space

I love this product, and will continue to use it

I found this product and all the others produced by Amsoil are top quality, and found they protect my vehicle's and equipment that I run Amsoil in

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Mike: space

I buy these products yearly

I do all my cars motorcycles lawnmowers etc. once a year

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Tony: space

I will buy this product again

My car seem to run better and I get better gas mileage.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by OceanBoy: space

Life-Long User of Amsoil!

I have been using Amsoil for over 20yrs. I use it on my cars,suv's,motorcycles,lawnmowers,boats,&jetski's!!
In the long run it is the "BEST THING" you can do for your machinery!!!

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Travis Brockmoore: space

I wont buy anything else.

I use Amsoil in all of my cars and they see a good amount of abuse from track days and autocross. Amsoil keeps my cars going strong. Proven to last longer and it does. Worth the money up front because you'll spend less in the long run.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Doug: space

Signature Series worth every penny and then some!

This best lubricant in the world hands down!

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Crazzyjoe: space

Great oil

Used this oil in all my daily driven cars very happy with it . I also use amsoil in my classic cars great oil.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Mysftail: space

Use it religiously

I was introduced to the signature series by a friend who works on motorcycles for a living. He told me a story of this guy who called him and said he didn't have any oil pressure in his bike. My friend said bring the bike over and he would look at it. The guy showed up three hours later, and when my friend asked him what took so long. The guy said he had to drive it there, from North Carolina! We live in South Carolina. My friend tore down the bike expecting major damage, but not even a score on the walls of the bore.
I won't use anything else, and because my wife's car has a twin scroll turbo in it, i make it a mandatory when doing maintenance!

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by JD: space

I will buy again

best oil hands down, make sure to check your oil often. When running this if your low you wont know it unless you check.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by ANITA: space

i would buy this product again

Use in my 99 ford Explorer

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Giovanni: space

I will definitely never stop using amsoil products

I use 5w30 in my car that has just shy of 200,000 miles I recently switched from 0w20 too 5w30 because of the miles I drive the car everyday pretty hard 75 miles each way too work I use amsoil since day one in every application possible and I have zero signs of wear on anything from the brake components too injectors

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by None: space

2007 Toyota Tacoma 50000 mi change with extended filter 12 m

Use 15w40 in my Ford excursion 2002 since new 140000 mi oil analysis shows no change since new .This is a 7.3 l diesel.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Matt: space

Extended protection you can count on

Been running Signature 5w30 in the last 3 brand new vehicles I have purchased. Change them over at 1st oil change. Does well in the hottest summer days and the coldest winter days. Use with the amsoil ea filter when available for my application and run 15k miles for change intervals.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by diamonbird: space

Best oil ever

You can't buy a better insurance policy for your vehicles

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Scorpion: space

Sig. Series 5W-30 Syn. Mtr. Oil

Amazing motor oil! I use it in all my American vehicles. We drove the RV to DisneyWorld in FL. I forgot to pack the oil change. Ordered oil online, Amsoil shipped it and it arrived the next day in FL. Easy oil change!

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Toga: space

Awesome Oil!!

Runs great in my Tacoma and the oil is still running strong with 6,500 miles on the oil. Power and mpg still runs great.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Joe: space

Extremely Happy

I have been using Amsoil for a couple of years now. It started with my 2012 Chevy Traverse. Chevy required that I use a oil that was partially synthetic. I started using this because my dealership didn't work on Saturdays and it was hard to get in for an oil change. Also I soon realized that I couldn't trust the quick change oil shops either. I have a shop that will use my oil and charge me a reasonable fee for changing oil that I can trust. I like that I can go for a year on the oil and it helps keep my cost down. I would like to add my brother uses this oil also. He has a 2004 GMC Yukon XL with over 250,000 miles on it now on the original motor. When he started using it he had around 130,000 miles on the motor and it was using about a quart of oil every 2000 miles. When he started using Amsoil it kept using oil until he had around 6,000 miles on the first oil change and it suddenly quit using oil. We are both convinced that Amsoil saved that motor. Him and I are using Amsoil in all of our engines as well other Amsoil products and are extremely happy with Amsoil and will keep using it

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Chad: space

One and done

Love the different colored bottles. ONE oil change a year, at this quality, I'll take it. It's cheaper thank you think

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Chad: space

One and done

Love the ability to drive a full year with out having to do an oil change. I may seem more expensive up front, but in a years span you saving loads of cash and your engine loves the quality.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by cj: space

would buy again

my 99 acura is running great after oil change

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Pun: space

Excellent product

Personal oil changes. And I like the fact that you don't have to do oil changes for a year or 25,000 miles

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Luis: space

5W-30

I use it on my chevy vehicles. The product and lab reports on it speak for themselves. This is a must product if your vehicle requires it.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Lennox: space

Yes

Excellent product

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Merwin: space

Best oil ever

Have this in my 2007 silverado.Seems to be doing as advertised.No engine problems at all.Runs great......Will continue using this oil.No cold starting issues with it.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by David: space

Amazing synthetic oil.

I swear by this oil. Simply the best fully synthetic oil out there. I got 220000 miles on my Altima and still has great fuel mileage and power.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Stephan: space

I will be buying from now on

I use this oil in all my newer gas engines, runs smooth, no engine noise, better gas mileage.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Rob: space

Yes

Used in all my vehicles. Season after season the best. An easier to read side window would be nice

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Chris: space

Definitely a repeat order!

Been using this oil for at least 10 years!
Great product!
Mileage increased in three of the vehicles by almost 5 mpg!

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Donald: space

The Best!

This is the best motor oil on the planet. I have used it in all my cars with excellent results.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Enrique: space

I would buy this again

Will never try any other oil in my vehicle only run amsoil

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Enrique: space

Great oil

I love this product makes my car run way smoother

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by David: space

Every Oil Change

I must use product

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Greg: space

Highly recomended

Great oil been using in my toyota tacoma I change the filter at 10k (EA) and complete drain at 20k. Truck doesnt smoke and runs great with 225k miles.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Kassidy: space

I will buy again

Amazing oil, the best you can buy, noticed improvements in mpg

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Lucas: space

Best oil their is

I use this in my 2012 Silverdo with the 5.3 V8 and it is great. I run it for a year and forget about it. Keeps the engine clean and cool.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Walter: space

The best oil on the market and always Amsoil

Great product I use in my suburban.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Denis: space

Signature series is your best investment.

If you plan to keep your car or truck more than 5 years or over 15 years like me; just invest in the best oil. As a bonus: change the oil just once a year.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Gregory: space

I will always use Amsoil Signature Series

I have a 2007 Buick Terraza 3.9L V6. I have used Amsoil Signature Series 5w-30 since I bought it with 19000 miles. It now has 158000 miles on it. First thing I noticed when I switch to Amsoil was a smoother idle. Gas mileage increased 2 miles per gallon. Even with 158000 miles the gas mileage has stayed consistent at 19 in the city and 25 on the highway. I change my oil once a year with 12000 miles on the oil.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Samuel: space

Will continue to use this oil indefinitely.

This is for a newer turbocharged volvo, oil always looks good when it comes out and the engine is nice and clean inside as well.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Raul: space

Only brand I trust for my vehicles.

Have been using this oil since 2005 in my truck. 2005 silverado 5.3L tuned and full bolt ons. I had used it prior for 3 years in an older truck I had. Very confident with Amsoil that I've been changing the oil in the silverado once a year for the past 11 years. I also have a 2014 and Amsoil is used in it as well since the first oil change was due. Back to the 2005 truck. Reason I told you its tuned... many people know how a tune gets your engine a "little" less life. Well, I have had to change out the valve cover gaskets twice within the 11 years I've owned it and as far as valves and heads. They're like brand new. Once a year change intervals. Truck has 140k+ miles. Amsoil has kept it running smooth since day one. Can't beat that!

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Robbie: space

Yes

2008 dts 5 years I thing it great

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Robbie: space

Yes

2008cadillac dts I been useing it for 5 years in the car

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Jamie: space

I would buy this product again and again.

I use all Amsoil products in all my SUV and cars
Use the metal products on my firearms to prevent rust and smooth operation
Amsoil is the best by far. And my family's trucks and cars

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Matthew: space

Only oil I use

The best.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Matthew: space

Only oil I use

The best

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Paul: space

Best there is!

I,ve been using Amsoil for many years and there's no better oil out there. Thanks Paul

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Chris: space

Best for cold

I live in a cold climate, even at -36 there is no need to plug my vehicles block heater in.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Greg: space

I would buy this product again

Amsoil synthetic is a high quality oil. I use it in all my vehicles. If you want superior oil with extended oil changes, amsoil is the way to go.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Robert: space

Changing oil once a year.

I use nothing but AMSOIL for my Toyota Tundra with 162,000 miles, mostly all local driving, use a 15,000 mile filter, and my truck doesn' t lose a drop oil. Great stuff.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Mark: space

i will always use this stuff.

amsoil is all i use. truck, car, scag, polaris, and harley. the best.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Eduardo: space

Average Joe Schmo

So far it's been nine months since I changed the oil on my daughters cobalt and Sentra , and the oil is holding up extremely well . recently replaced it on my wife's 2013 Altima and my dad's 2007 Dodge ram 1500 . So we'll see what holds up as just as well has on our cars . I use the European formula on my BMW and it's awesome . Actually better than the regular TwinTurbo oil and just a tad better than the M formula

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Ken: space

I buy it all the time I run this oil in all of my vehicles

Car runs great with this oil

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by MICHAEL: space

Signature Series 5W-30

Excellent product. Will continue to use and purchase.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Mark: space

My oil of choice

On a friends recommendation I switched to Amsoil for use in my 2005 Jeep Liberty Diesel. I sold the Liberty after 3 years but have continued to use Amsoil products in all of my Vehicles, generators, lawn tractors, push mowers, and snow blower. The Signature Series 5W-30 is my oil of choice for my GMC Sierra, and my wife's
Lincoln MKX. I highly recommend trying all of Amsoil's products, everything I have tried I have been completely satisfied with, oils, grease, sprays, fuel additives, filters, ect....

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by LEE: space

Will purchase again

I just started using oil and noticed a difference in the operation of the engine within the first change it is smoother running and quiet

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Michael: space

i will not buy another oil but amsoil

have been using exclusively for five years it is the best performing synthetic oil you can use

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by John: space

Outstanding Oil!

I use only Signature Series 5w-30 in my 2008 Toyota Sienna and she purrs like a kitten. This stuff is guarantees for 25,000 miles even though I have never pushed it that far but believe it will stand up to the miles as instructed. Used Mobil 1 products for years but found Amsoil and have never looked back. Fair price, great shipping and I enjoy knowing that I am using the best. Turned on many of my friends and co-workers to Amsoil and they have all bee amazed by the performance of the oil. One person in particular had a Chevy Suburban with nearly 200,000 miles on it and was contemplating dropping in a new engine due to some form of tapping noise. I introduced the person to Amsoil and was pleased to hear the noise had nearly disappeared and his vehicle is running like a race horse. Thanks you Amsoil for making superior products for those of us who cannot afford to buy new vehicles every couple of years. If you want your stuff to last, Amsoil oil is the way to go. Just give it a try and you will not be disappointed.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Willie: space

AMAZING OIL

Everything works as advertised. Best oil ever. I'll use it now and forever

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Tim: space

For my son's car

Put oil and filter in my son's car, he forgets to check oil like he should but with 4 quarts of Amsoil, is better then 5 quart of regular oil, so I know his car is covered.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Charles: space

Great product

Been using this product for about 3 years. No troubles ever

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by LANCE: space

Your time is valuable, save some, use Amsoil!

I have been using the Amsoil products now for about 4 years, first in my 1999 VFR800 then my Ranger and now my Nissan Frontier and 2012 Sante Fe. I am very pleased with their performance in my vehicles and in knowing I have the best protection for my engines.
I also like the fact that I am using less oil annually and the extended oil change dates make maintaining my vehicles less time consuming. l would recommend these products to others for the time savings alone, it makes it a lot nicer to only have one oil change a year per motorized product vs. the 2-4 I was doing in the past for each vehicle.
Buy the products, use them as specified and you won't be disappointed.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by ROB: space

Hard to beat Ams Oil

I have tried every oil out there. Some burn off before the next oil change. Some have inconsistent colour between bottles. And one of the TOP NAMES had DIRT in the bottom of the bottle. And this stuff was supposedly made from NATURAL GAS!!!! I called them and they didnt care. This makes me wonder how well quality control is at some of these companies.

I expect quality for my money. I expect consistency. And with Ams oil I been getting just that.
I run my Cars,Truck and toys very hard and I expect them to last so I use the best.
Great stuff

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Joshua: space

Great stuff.

I have this oil in my boat motor, a 400hp 6.2L inmar Ford Raptor. Nothing bad to say about amsoil....ever. GET SOME.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Stephen: space

The Best Lifeblood for your Vehicle!

I use Amsoil 5W30 Signature Series in all 3 of my vehicles. After using the 10W40 in my motorcycle and watching the "White Papers" comparative study on 5W30 motor oils done by a reputable 3rd party test lab I was convinced that this was the best oil on the market. And they don't have other product lines to fall back on if sales don't demonstrate it is a quality product. The "White Papers" comparative study results really says it all. I am an Amsoil customer for life and have also convinced a family member who also happens to drive one of the vehicles in our family that you cannot lose but only win with Amsoil. He is sold on it too!

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Simon: space

Best Oil on the Market - Hands Down!

I've used AMSOIL for 25 years religiously, and have done the research. (I also do analysis regularly) AMSOIL Signature Series oils are the best money can buy. Well worth the extra price over Dino oils! Also the best synthetic at any price! If you are not using AMSOIL, you are missing out!

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Alan: space

Great product!

I use it because the additive package is so robust, it can handle the severe service manner in which I use my Explorer. Combined with the Amsoil Oil Filter, I can go 15k miles or 1 year, even under severe-service use.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Robert: space

First try.

Have just switched to Amsoil for my truck, so too early to review. I will say, though, that cold weather (-25c) starts are a breeze. If it performs as well as in my bike, it will be my go to oil.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Robert: space

I use amsoil for every vehicle I own

5 star

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Elwood: space

Great oil

Great oil, engine runs smooth, make sure you use the Amsoil filters and for new users use the engine flush before introducing Amsoil oil and filter

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Robert: space

2017 Acura RDX

Used this in my 2012 RDX and got 150K miles with NO problems, and changed every 10K. The BEST! Will do the same with 2017.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Bobby: space

The only oil for my F150 Ecoboost

I run this oil in my 2.7 Ecoboost. Since it is a turbocharged engine, I know it is protected with this oil.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by DAVE: space

great product

Great stuff...pour it in and don't look back

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Robert: space

I will be buying again next year, but just a filter.

Installed in my 2013 GMC Sierra 1500 at around 36000 miles. My 1st oil change after purchasing the truck used. Long time AMSOIL user and very pleased with how it preforms.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Bobby: space

Signature Series is great.

I use signature series for all my vehicles. It saves me time & money. I only have to change my oils once a year with the 25000 mile or 12 months.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Phil: space

Without a doubt this is the only oil I will ever use.

I have been using the Amsoil Signature series oil for over 15 years in my vehicles. Living in the northern part of Alberta, Canada and travelling even further north numerous times of the year made this one of the best decisions I made. For hours of highway speeds and the sometimes (especially in the winter months) at extreme low temperatures this is the only oil that has given me the confidence and reliability I have ever encountered.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Christopher: space

Best street oil

Use it in my 06 Pathfinder and 14 Evo X. Great cold start up and even better protection once hot. Viscosity breakdown is almost non-existent. I have been using AMSOIL for years in engines, transmissions(where applicable), transfer cases,
differentials, and firearms. Actually, my Evo X tuner(renown CBRD in York, PA) told me to use AMSOIL. Great products.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Leo: space

I would definitely buy this product again !

The turbocharged engine in my car is very picky on oil, and AMSOIL is one of two brands that I had been using. As the local stores here so not stock Amsoil anymore, I purchased online and it was a great experience - lightning shipping and product as ordered. Thank you so much again,
Leo.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Jeff: space

Premium products, great company.

Amsoil is a great company providing a great product.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Craig: space

Great product

I don't put anything else in my vehicles.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Scott: space

Best in class

Best in class in quality. Best n class in service. Best in class delivery.
(In my book)

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Josh: space

I'm never going to use another oil again

It's great couldnt ask for a better product for the price

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Jake: space

I continue to buy for all 3 of my vehicles

I let the quick oil change stations change my oil with my oil instead of theirs.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Mechghy78: space

First time running Amsoil

I changed to amsoil from gm dexos as I wanted something better for my Cruze. After 10k of running dexos as it was included with the car, I switched to amsoil and immediately noticed the engine running quieter than with dexos. I am happy with the change so far and am looking forward to see how it holds up as I only have 1500 miles on it so far. We'll see what happens when I get into my second oil change.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Pinball Bob: space

Great Product! Time order more,

2010 Ford Explorer and soon to be 2015 Chevrolet Silverado. I do have other gas powered items, lawn tractor, edger, tiller, etc. I really need to convert them over as I have had nothing but great results with your product.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Gary: space

two stroke oil

I have been using this oil in my dirt bikes for 40 years now!! I mix it with avation fuel at 83 to 1. they have always ran great!!

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by J-rod: space

Why I made the switch

I made the switch to Amsoil with 25,000 miles on my truck after doing a lot of research on which oils would be best for my style of driving (I do a lot of sever off-road driving in my truck through the California deserts). Due to my style of driving I decided to do an oil change at 10,000 miles rather than the 15,000 that Amsoil recommends for "severe driving". After the first oil change I also had an oil analysis completed. To my surprise the results came back great. They also said I could have probably gone another 3,000 - 5,000 miles! That would have been 13-15K miles between changes with a solid 500 miles of that being run in hot dusty desert conditions with the engine pushing high RPM's... not to mention the LA traffic I get to put up with when I decide to stay on the road.
Long story short... Amsoil is more expensive than most other oils, but you can easily go 2-3x longer between changes!

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by BCB: space

Yes I will buy this oil again

I use this oil in my 2015 Volvo S60 T-5. The recommended oil is Castrol Professional with an ACEA of A5/B5. I have not been able to purchase this oil even from the dealership (in fact they recommended an off the shelf Castrol oil). Amsoil Signature Series 5w-30 has an ACEA of A5/B5 and I feel it to be a superior oil. Volvo's engines are considered to be long life (million plus miles) I intend to find out with the help of Amsoil

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by WD: space

I will continue to buy this product.

I use 5-30 in my 5.7 hemi. The mileage increased 3mpg, hence free oil.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Lemar: space

22 years. It's all I use. It's all I'll ever use

I first started using Amsoil 5W30 on my brand new 1994 Ford Ranger Splash 4.0L on the advice of my uncle who was a dealer at the time. Except for the 4 years I owned a 2004 Saturn Vue 3.5L which used Amsoil Signature Series 5W20, it's all I've used since, and all I'll ever use. It or Amsoil. Here are the vehicles I've used it in, and I advise anyone reading this to use it too.
1978 Ford E150 351W
1994 Ford Ranger Splash 4.0L
1996 Honda Accord 2.2L
1998 Acura 3.5RL
2004 Chevy Trailblazer 4.2L
2003 Saturn Vue 2.2L
2004 Saturn Vue 3.5L (5W20)
2008 Ford Explorer Sport Trac 4.0L
2010 Nissan Altima 2.5 S

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Tom: space

Start up Noise silenced.

Start ups used to sound like a machine shop and now it much quieter.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Lee: space

Great Oil

I purchased a used 2012 Chevy Volt I did not know what oil had been used may have been dealer oil and filter when I drained out the old oil it came out quickly and very dirty that would explain why the engine may have been on the noisy side. I used the required oil that is recommended and when the engine started there was hardly any noise from the engine and very little vibration. Great oil has been running great since I used Amsoil oil and filter.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Motomonkey116: space

Awesome Product

I change my oil 1 a year. I have never had any engine or fuel economy issues. Even when I am low on oil. My vehicle have over 175,000.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by fryer: space

5w30 synthnetic oil

awesome as all Amsoil products are! this stuff kicks ! I will be buying more next month. oil held up great still looks good feels good! oil pressure never dropped and still hasn't dropped. 140000 +miles on it worked great all winter long. and I only have to change my oil once a year! how sweet is that,

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by tman: space

Very satisfied customer

I've used Amsoil products for many years on both Pickup truck and van. Completely satisfied with the price and performance.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by N/A: space

I will continue to purchase Amsoil Signature Series oil!!

I use both Amsoil oil filters and synthetic signature 5W-30 in my 21012 Avalon. Very Happy with both and will continue to use this product. Everyone at Amsoil is always professional and helpful with any questions I have. Great product.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Archer: space

The good stuff

Dads 1993 ford ranger 2.3 and 230,000 miles really seems to like it. Best we've ever used

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Sammich: space

I use it in everything never been any problems

Good product for people who put lots of kms on there vehicles. Bit pricey

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Maximum RPM: space

Excellent reliable Service

It didn't take long for my order of oil and filters to arrive. I remember placing the order, next thing I knew it was at my door. You don't get service like that anywhere else

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Ash: space

I will continue to buy this for my car

I love the product I only wish you offered free shipping more often .

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Fishnpole: space

Great product, will buy again

Bought a 2013 Tacoma brand new. First thing I did was drain the fluids and replaced everything with amsoil product. Dealer techs thought I was crazy because they offer 2 years free oil changes, I think they are crazy for try to put another oil in my pickup. Love this stuff and only need to change once a year.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Louis: space

Improved gas mileage

I have used this oil in my 2008 Toyota Prius since November 2015. There was a noticeable improvement in gas mileage. I consistently get 52 to 54 MPG. My Prius has 183.000 miles and it runs better than new. It does have higher oil consumption than when I used petroleum based oil, but it hasn't impacted the performance. It should help the engine last a long time.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Cecil: space

Great product

A little pricey but after researching the product, it's the best in the industry. Kinda get what you pay for.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Butch: space

fewer oil changes

I have been using Amsoil signature series 5w-30 synthetic oil about 3 years and am very happy with it. I change my oil just once a year now compared to 2-3 times in the past. My engine runs great and in the long run it costs me less, no engine repairs or tune-ups other than normal maintenance. This is great considering I tow a 20 ft boat and put on at least a thousand miles a year just towing. I am very happy with this product and highly recommend it.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Rainman0069: space

Perfect Oil

Have been using Signature Series oil for years in all my vehicles, past and present. Long life and excellent protection. 2008 G8 GT 6.0L used Signature Series since day one, 120K later, engine still like new.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Mickie: space

Amsoil The truth

Took a long hard look at using Synthetic Motor Oil Products , back in the middle 90s, and have spent over 30 years in the Air Force I knew what synthetics were about.. And now I only had to figure out what were the best ones to use in my Cars and Trucks..
After about 8 mos of researching Fiction and Fact about Synthetic products, ( They are not all the same, especially the Base Oil ) I settled on AMSOIL for my Oil and Especially Filter Needs .. I feel that the Most important part of using Synthetic products is the OIL Filter, and its Specifications.. Many Filter Manufactures are reluctant to give information on their filters makeup. But you can find it if you dig deep enough and Understand the Testing regime used to make comparisons. AMSOIL has been around longer than anyone when it comes to synthetic oil for your vehicles.. Just go with the Best.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Jeremy: space

Great product and service!

Quick delivery couldn't ask for a better way to buy oil!

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Chris: space

Good first impression

So far, so good. Oil levels have been maintained with the usual discoloration. I'm waiting for my next oil change in order to perform an oil analysis. Then I shall know the truth of Amsoil's claims for myself. But, for the time being, I am impressed.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by jc: space

signature series

I do like the ams products. Its definitally one of the best oils on the market. Is rate it as good or better than mobile 1 which says alot. Ive tried the racing oil as well and it is awesome.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Jose: space

Love this oil and will continue to buy it!!!

I have a 2015 chevy cruze and I change the oil every 20,000 to 25,000 miles. I use to have a 2011 chevy cruze before and i changed the oil between 20,000 to 25,000 miles. The engine runs cooler never had a problem running with this oil. I recommend everyone to switch to this oil. Buy!!!

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Hoosier Cruiser: space

Excellent Product

I have been using Amsoil signature oil in my vehicles for the past year and have been able to cut the cost of oil changes by approximately 50% ! I am sold in Amsoil

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Mitch: space

Signature 5w-30 is my homeowners Fleet oil.

I have used signature 5w-30 as my all-around oil in everything I own. Cars , trucks, lawn mowers, snow thrower and generator. Since 1994 I've never had an oil related issue and it makes oil changes simple , just grab the Signature 5-30!

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Storm Petrol: space

This Oil Saved an Engine.

Our 1999 Odyssey wouldn't start after our son pulled off the highway to tighten down the tarp on the trailer he was towing. By the time the tow truck driver got there, it did start. The driver said he would follow for a time to insure the van kept going before he went on.

The engine temperature immediately jumped into the red zone. An inspection showed that the rusted hose clamp at the bottom of the radiator had given up--there was nothing in the cooling system!

After a tow to the shop, with the addition of a new clamp and coolant, the vehicle started.

1300 miles later, we heard about this from or second son and our mechanic checked for codes. The sensor had recorded 395F at the time of this incident!

I immediately replaced the crank oil for 5 new quarts of Signature Series 5W-30. The old stuff, which only had a few thousand miles on it, smelled just slightly burned.

Our mechanic said he would typically expect the engine to be toast, with vital components even melted! Yet, although we don't know the actual condition of the rings, pistons and cylinder walls, the car is running well, with no misses or apparent loss of power.

The only reason we can all think of for survival of the engine is the Amsoil, with its superior cooling qualities.

It gets the credit for the fact that the engine is still running at all!

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Steve: space

Great product

Is this product and love the 25,000 mile oil change!

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by TINY61: space

TREAT IT RIGHT

THIS IS ONLY COMMON SENSE. IF YOU KEEP ONLY THE BEST LUBRICANTS IN YOUR EQUIPMENT IT WILL GIVE YOU ITS' BEST PERFORMANCE. AS THE COST OF MODERN VEHICLES IS SO PROHIBITIVE IT MAKES GOOD SENSE TO USE THE BEST. MY VEHICLES FROM MY 1978 THROUGH MY 2008 ALL PREFORM BETTER WITH AMSOIL.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Miller: space

Yes I run amsiol in everything

I my truck, cars all the time since 1999

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Al: space

I use And oil lubricants almost exclusively!

My wife calls me a techno-geek. It's actually true. I am an engineer. I research everything I purchase. When I purchased a used pickup in 2006 it had 180K miles. I immediately changed ALL of the fluids to their respective types with Amsoil. My pickup now has 373K . I would not hesitate to drive it to Alaska and back. I trust Amsoil in all my machines.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by amsoil man: space

over 300,000 and still going!

I run this in every car I own and have for years. less maintenance since you only have to change it once a year is worth a little extra cost to me started putting it in my 5.4 triton truck when I got it used with like 160k on it. it smokes like heck but still going at over 300,000 miles!! that is really saying something about this oil and it burns less of amsoil than other synthetics.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Bob: space

Years of use

Have used Your products for over 20 years in all my vehicles

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Dennis: space

I would buy this product again, and I have several times.

the best oil money can buy, don't take my word, try it for your self.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by T-Lou: space

Signature Series Oil

Like the longevity.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Redman: space

Best Product Ever

I've been using AMSOIL for going on three years and its nice knowing that my 12 year old truck wither 175,000 miles and is protected by the best synthetic oil on the market and continues to run great. Once a year old changes, with a mid year oil filter is easy maintenance. I recommend AMSOIL products to all the people I talk to who are being thrifty with their older vehicles. Compared to the costs of simple oil changes at a garage. AMSOIL products that I have tried have stood up to the advertising they offer, and its rare to get exactly what you read about these days.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Jon: space

Love the extended oil changes

I am a part time collage student getting my certification in auto mechanics, my engine seems to run quieter and the mileage has gone up maybe 1 or 2 mile.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Annie: space

Make your vehicle go, go, go for the LONG haul

I grew up in a family where good oil was the name of the game to keep your vehicle going for many miles. Just when you think the car is on it's last leg it will keep running and I believe it is due to the success of Amsoil products being used. If you are looking to only have to change your oil 2 times a year, once in the spring and once in the fall. I recommend you to buy this product. I have had great success with my vehicles and with Amsoils services.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by This is a stupid question: space

AMSOIL

I bought it, it came, I used it.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Kyle O.: space

Pure and easy no spill spill spout

Excellent used oil analysis after 10k miles - better than Royal Purple. Just remember to top off. The wider opening helped me give a controlled pour. Everything went in.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by traderdollar: space

So Far So Good

Put it in my 125K, 2005 Lexus RX 330, along with the Amsoil filter. Every thing fine so far. I'm looking forward to what the oil looks like in 10K miles. Actually, looks probably don't mean much. Would need to test.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by WVJAY: space

The BEST of the BEST

I have been using the Signature Series for many years in my 2002 Olds Bravada. I purchased it new and have always used synthetic oil. The main reason I use Amsoil Sig series is the long intervals. When a person can change their oil once a year vs 4 times a year it was a no brainer. Once a year is much less work for me and it's WAY CHEAPER!!! I highly recommend using Amsoil and I believe when you try it u will be extremely impressed.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Aguaman: space

Love this oil, I've been using it for years.

I use this oil in both my car and truck. I like how I can schedule my oil changes during the nice weather seasons here in Idaho. I been changing the oil once a year without any issues. The oil always looks very clean and clear at changes.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by mttrsn1: space

Amsoil 5w30 Signature Series

This is the Staple in any engines life! Have been using this Amsoil product for 16 years now in many different vehicles. Use Amsoil products in all my equipment, SUV's, cars, lawn tractors and mowers, from the motor oil to the transmission fluid to gear lube/differential. Never have to worry about or even think about if you have the best protection possible. Engines run very clean, smoother, quieter, and noticeably better fuel mileage. Outstanding performance!!!!

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Tony: space

I buy nothing else for my vehicles!

I use Amsoil in all of my engines and I have never had any issues. I get great gas mileage and when the oil is changed, it doesn't look much darker than when it went in. I am a preference type person, and I prefer nothing else but Amsoil. All of their products are the best, first class!

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by David.: space

Ls1

The typical cold engine slap noise is gone. Oil pressure stays up after engine warms up and fuel mileage continues to climb. Do not hesitate to buy this oil. Mobil 1 isn't close!

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Mark: space

Amsoil is superior.

A number of years ago I learned that synthetic oil was superior to conventional oil. Shortly thereafter I tried amsoil and discovered that amsoil was superior to other synthetic oils. This became evident when I started traveling on 2250 mile trips on a fairly regular basis. Other synthetics needed a quart on the trip. Amsoil, none.
I researched the issue and a competitor alleged that the difference was based upon Amsoil's use of too much of a certain additive and that that additive would ruin a catalytic converter. I have put over 150,000 miles on three different vehicles and none ever needed a catalytic converter or oxygen sensor.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Strick: space

Great product

I have used this product for about eight years now and my car is 13 years old and still going strong/

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Jmlo96: space

Best Synthetic Oil

I run this oil in my turbocharged Chevy Cruze. It is clear in the numerous tests that Amsoil makes a superior oil. I was sold on Amsoil when I had a rough manual transmission shift, and the Amsoil fluid made it totally disappear.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Justin: space

Great product

Awesome oil. I have a 04 Dakota 4.7 with the dreaded lifter knock and after trying a few different things. I was recommended to try some amsoil products and I will never go back to anything else. Gave my motor a good feel and the tapping is very minimal, you can barely hear it in and it goes away after a second or two. Will always use amsoil products.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by MrBigWay: space

Great Performance Product

I have used Amsoi in all my vehicles sense it first came out, I notices a increase in fuel economy and performance.
I put it in the motor, Transmission and rear end of my race car and increased my ET by .5 seconds which is amazing
I also use it in my semi truck with the same results in mileage and performance

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Brando: space

Excellent Product

The wear protection is phenomenonal, the performance improvements are noticeable and the extended drain intervals are what make Amsoil my favorite product. I currently run this oil in a half ton (V8) and SUV (V8) which put between 30000-40000 miles a year each.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Kilted One: space

Another Great Amsoil Product

Our 2015 GMC requires GM spec oil which Amsoil more than meets. Being a bit old school on oil changes I like the margin of a high quality synthetic because modern engines are under much higher stresses and heat than when I started driving and wrenching.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Robb: space

Better than advertised

I have used Amsoil Signature since my vehicles were new. 2 of them have over 200,000 miles and the 3rd has over a 100,000. I have shortened drain ontervals to 12,000 miles and leak no oil in-between changes.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by SHUZAAM: space

The best product you could ever buy.

I use this product in my 2007 Chevrolet Cobalt.
When I first purchased my vehicle, it was absolutely not taken care of.
Along with a multitude of other mechanical repairs, I changed the oil that was in it, with Amsoil signature series motor oil,
Amsoil automatic transmission oil, and
brake fluid from Amsoil.
Boy, I tell ya. When you take care of your vehicles and use Amsoil motor oil and products, the performance of your motor gets a boost.
I've noticed it runs way better, and lasts way longer.
It keeps my engine healthy, and I'm always sharing the experience with others.

I also used the European synthetic on my girlfriends beetle, which was production condensation of oil on and around the oil cap and fill hole.
The engine was burning it up, and there was a leak that was found by a rinky dink shop.
I put in some Amsoil hoping it would fix the issue.
Of course, it always proves itself.
Healed up all the gaskets and stopped the leak.
She didn't have to fill up every 2 weeks anymore, and her engine is running even better.

BUY AMSOIL PRODUCTS PEOPLE

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Prius: space

Hybrid with Amsoil

Use this in my Prius Hybrid and gained 1.3 miles per gallon. The added protection of Amsoil in my engine gives me a great peace of mind.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Larwel: space

Will buy this again

Use it in my Corvette C6

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Doug: space

Good stuff

Not much to say, really. I'm pretty sure the main ingredient is awesome sauce, though. I won't put anything else in any of my ICE-powered vehicles. If Amsoil could make electrons, you know e-cars would go faster.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by HHR Man: space

good stuff

I have used Amsoil for years in several different vehicles and have found the product to be superior to the other products that are found in stores. I have had comments about how well my vehicles have run while using your product.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Moto Man: space

Good Stuff

I use Amsoil in the car, my motorcycle, and in any other engine I may possess. I am not brand loyal except when I find a product that is so superior that no comparison exists.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Nick: space

Been using for years

My dad started using Amsoil in the 1980's and when I started driving in he mid 90's I started using it too. Never had any issues and I always beat on my vehicles. Excellent oil.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by J.P.: space

STILL RUNNING STRONG

i have used amsoil in my 2002 chevy avalanche with a 5.3 liter engine. i have 140,000 miles on the engine and oil consumption is less than a pint every 8,000 miles. i also use amsoil in my wifes 2003 chevy trailblazer, it has 121,000 miles and does not use any oil. i go 8,000 miles between oil changes.
i also use amsoil synthhetic transmission fluid in both vechiles.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by bgdv1: space

Excelent product

I run the 5W-30 in my Tacoma, my wifes Legacy and our sons 4Runner. I also run all Amsoil oils in our 2 Harley Davidson motorcycles.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by brian: space

great product

after 1 year oil is in better shape in color and overall viscosity that conventional oil i use the recommended amsoil filter with cold winters and hot summers pulling a boat of 5000 saves me money only changing once a year instead of 3 with regular oil

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Tim1457: space

I wouldn't use anything else.

I started using Amsoil in 2011. I talked to several people at work that used Amsoil products and we're very satisfied with it. I got a dealer at work to order the Signature Series for my Tundra. Well, 5 years later, I'm still using it and still loving it. I've also used the transmission fluid and products for my ATV. I'm sold on Amsoil.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Ewan: space

Worth every penny.

Title says it all. I bought this for my first oil change on my 2015 Ford Focus ST. I'm now on my second oil change using the same product. My engine oil temps run consistently 15-20 degrees cooler than before. Will never go back to another brand again.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by trigama3: space

Less down time on service vehicles

Retired my 1994 Toyota xtra cab 4 cyl, 5spd pickup in 2014 with 267,000miles.
Started using Amsoil around 70,000 miles because I got tired of changing oil every month. Never burned oil.
Truck had a full load with it in the entire time I used it. Worked that motor hard.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Neil: space

Yes

I use this in my 08 Pontiac G8 it works good I like better then going to the auto parts oil

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by KeniceThe Menice: space

I put Amsoil in all my vehicles.

I have ran Amsoil in my diesel truck since 2008 and converted my girlfriends gas truck over about two years ago. I like reading about the testing done comparing Amsoil products to other companies products. I feel like Im using the best oil out there. Soon my 70 Chevelle will run Amsoil too.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Joshua: space

I will buy again

I works well in my dakota and have used only amsoil in my ruck for the last 100k I have @190k on it now

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by DJ cars my passion and hobby: space

best oil going

use amsoil in my 2000 corvette (135,000 mi), 2002 325 bmw (140,000 mi) and my 1956 chevy 210 with a 355 stroker hardly any miles but really like the Z-rod oil. Been using amsoil for 8-10 years and to date no engine problems. will continue to use their product till I'm grounded from owning a vehicle.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Brand: space

Excellent oil

I've tried other oils, this by far is the best. Less consumption noticed, stays cleaner longer. There is a difference, I've tried them all, in motorcycles and trucks, this is by far the best in my opinion!

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Tedd: space

Product as well as services are impeccable!

I've been using Amsoil products for years so I am aware of the guilty and value, but what always surprise me, and I don't why by now, is the fact that they are usual at my door in 1 or 2 days. Fantastic shipping for me. I appreciate that greatly. Thank You Amsoil

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Dick: space

Signature Series 5W-30

I have used this in my Toyota pick-up for 11years and the engine is like new.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by JW: space

Signature series full synthetic 5W-30

I have been using this oil for over 20 years in all my vehicles. It is by far the best motor oil I have ever used. I started using in my 1996 Chevy pickup. The garage had to replace an intake manifold gasket. They ask me if I had cleaned the engine before bringing it in. I said no, they said the engine looked brand new inside, it had absolutely no carbon build up. That was amazing since the truck had 158,000 miles on it. You can't go wrong by using this oil.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Duck Killer: space

GMC 2009 sierra

I ran this oil on the 15,000 mile program because I'm on the gas pretty heavy at times. The first cycle went well, but the next cycle I pulled my trailer a lot and the oil was history at 6,000. Truck also had lifter tick at start up when motor was already at running temp. Went back to conventional oil and lifter tick was gone.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Vladimir: space

Amsoil Superior Quality

I come from the old school that good quality oil is always cheaper than rebuilds and parts replacement. I have been using Amsoil products for over 20 years and the results have been outstanding. They provide the best protection against wear keeping the powertrain in outstanding clean and excellent conditions for many, many trouble free miles.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Skip: space

The best synthetic oil on the market.

I've been using Signature series 5w-30 for over twenty years and will use no-other because it simply continues to be the best available synthetic motor oil on the market.
The mechanic I use puts it into my engine, transmission, radiator, and differential.
I have a total of over one hundred thousand miles of trouble free driving on my vehicles.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Jerry: space

Retire aircraft mechanic. I know synthetic oil.

I use AMSOIL like aircraft owners use engine oil on their planes. Auto owners change oil and filter every 3,000 miles or 3 months witch ever come 1st. With AMSOIL I change oil every 10,000 miles and filters every 5,000 miles. Easy to remember and cheaper than 3,000 mile or 3 months. Tell your wife not to nag you about oil change until she nears that 10,000 mile mark.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by None: space

Nothing but the best

I have used Amsoil for 20+ years. I collect classic Mustangs and only the very best products are used on them. I also use Amsoil in my 2006 Silverado. My wife just bought a 2016 Buick and Amsoil will go in at its first oil change. I've never had a lubrication mechanical failure .

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Huffy: space

I do buy this product again & again

I use this in my cars from brand new!!

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Cliff: space

Signature Series 5W30 stays cleaner than any oil I've used.

I have used Amsoil for several years in just about all of my vehicles. The only one I do not use this oil in is an old 69 VW that leaks from time to time. For any other vehicle, old or new, I highly recommend Amsoil Sigature Series. I save about $100 a year per vehicle on oil changes. Once a year oil changes save a lot of time too. I've never had any issues mechanically with the extended oil changes.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Dan: space

Extended Drain, Extended Value

I have always used high quality synthetic oils in all of my cars (daily drivers) because I believe it pays off in reduced engine wear. The Amsoil Signature Series is on par, if not a notch above the other oils I have used in terms of performance.

What sets this apart from the competitors is the extended drain interval. Since my car is turbocharged, I follow the heavy duty recommendations (15k) with a filter change per Chevy's instructions (7.5k). This saves me time (cartridge filter takes 2 minutes) and money versus an oil with a standard drain interval. It would save even more in a vehicle that can follow the 25k drain. Even at the end of the 15k, I don't notice any decrease in performance, but I change it anyway.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Rascal1101: space

Simply the best.

I have been using Amsoil products over 20 years now and have been pleased with all the performance and durability aspects.
Have used the Signature blend oils in many cars for the extended drain intervals and have never experienced any failure, wear or usage problems.... period.
Why would I use anything else?

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Mxmantc87: space

Best oil for your vehicles

I've used amsoil in all of my dirt bikes for 10 plus years every new top end build the engines have been spotless. I just recently started using amsoil in my vehicles and so far I'm blown away on how good the oil is even on changing its not black and thick like other oils I have used. I change my oil in my cars every 15 thousand miles with this oil it's good up till 25k but I just do it out of peace of mind. If you have never used amsoil I recommend you give it a shot. I'll never use any other oil in my vehicles or dirt bikes except amsoil

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by WOMPUS: space

The only oil I've used since the mid 70's

I use the 5W30 in 2 of my cars, 1 Chevy truck, and 2 Street Rods.
In fact I use Amsoil in everything from my air compressors to my boats.
Never thought of using any oil but Amsoil since the mid 70's.
I'm a walking advertisement for Amsoil... great oil, in fact I just turned 325,000 miles on my motorcycle, if that isn't proof of Amsoil then I don't know what is!

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Tim: space

Yes I would buy this product again

I am fully satisfied with my product especially the fast delivery

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Scott: space

The best oil I have ever used.

I use this oil in my 2012 Nissan Rogue and my wife's 2011 Nissan Juke (Has a Turbocharger in it). I love being able to go 15,000 miles/1yr to do an oil change. Saves me money and I don't have to make time 3-4 times a year to make an appointment for an oil change. It may cost more upfront for the oil and filter but it is cheaper by the end. Figure at least $20-30 per basic oil change multiply that by 4 times a year, you just spent $80-120 for 4 oil changes in that one year, for a basic oil change at every 3,000 miles.
If you get this Signature Series and a Ea filter you can go 15,000 miles. You get and extra 3,000 miles or one less oil change. You just saves money right there.
If your vehicle has a Turbocharger in it, you must use Signature Series. The engines get way to hot for the basic cheap oil.
Even if you get free oil changes from a dealership, they use basic or synthetic blend oil, and most likely and unknown or cheap oil filter. Do you want to put cheap stuff in your vehicle? I don't.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Ryan: space

Best Synthetic Oil.

I've used the Signature Series 5W-30 in my Nissan Titan for over eight years and have never had a single oil-related issue, even when pushing my truck to the limits.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Satisfied: space

Amsoil Is The Best!

I've used Amsoil products now for about twelve years.
After a year, the drain oil is not much darker than it was when it went in.
I put about 1000 miles per month on my truck (2014 Xterra).
Previously, I drove a 2001 4Runner similar miles.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by PM: space

Overpriced

Your product have become overpriced and shipping prices are out of control, can't imagine if I wasn't A preferred paying customer...

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by M.L.: space

Great oil

I use this oil in my 2011 and 2005 Silverados. Never had any trouble with 120,000+ miles on both of them.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Lucky: space

Love amsoil

I use amsoil in everything I own bikes quads vehicles ect. I use this in my 2012 Silverado trucks seams to preform better with this rather than the mobile one I was using before

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

Reviewed by Derek: space

The Best

As long as Amsoil is in business I will not buy another oil.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)
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