Customer Ratings & Reviews

I have been using AMSOIL for 19 years now and wouldn't use anything but. I use this new 0w40 in my 2015 Challenger SRT 392. And have been using it now over the 5w30 in my old 2004 Ram 5.7 HEMI that has 193,000 miles on it all with AMSOIL. The truck is running totally on AMSOIL products bumper to bumper. The challenger soon will also be covered with AMSOIL, But for now, just the engine. My motor home, Jeep, and two KTM dirt bikes as all run with AMSOIL. AMSOIL just can't be beat. And all of their products can be trusted to have what you drive running at its best. Thanks AMSOIL

Great product,great price

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

Best oil and value imho.

I've been using amsoil since 1973, and have not had a single car have any mechanical failure. About 1 million miles with a motor home, two trailers and a dozen automobiles.

Engine protection unmatches?, extended oil changes and it Amsoil!!

We switched over to Amsoil at around 12k on our 2016 Corolla. We were able to see better fuel economy right away, with 2-3 miles per gallon.

I used this in my 1998 jeep Cherokee 4.0 and gained 3 pounds of oil pressure over a competitors high mileage 10w-30 overall I would highly recommend. But next time I will use the premium protection 10w-40 because the older jeep engines do have flat tappet camshafts and like extra zinc. I just bought a 1989 jeep Comanche with a renix 4.0 that had a wiped cam because lack of quality oil (not enough zinc) and I'm replacing an engine in a 1997 Jeep Wrangler 2.5 for a friend of the family because of the same reason. Great oil!!!

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

Used it for years

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!

Has keep our Vehicles Running smoothly and efficiently.

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!!!!!

Been using 0w-20 and 5w-20 in our 2007 mazda 3s since it was brand new. After 107,000 mostly city miles and 10 years Engine still runs like new and have had zero leaks and still doesn't burn a drop of oil between yearly changes. Use Amsoil and create less waste and save money and problems by changing your oil less.

I've been using Amsoil for most of the past two decades. It's the only oil trust to protect my engines and now my firearms. They have never let me down and have earned my loyalty.

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

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.

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

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

Been using this oil for awhile now like all amsoil oils. The best there is