Cost more than the other brands but we'll worth it. Especially if you are keeping your vehicle(s) for many years

WHEN I CHANGED THIS IN MY JEEP MY MPG WENT UP 2 MILES PER GALLON

It does everything I want and more ! Nice to have such good protection that you don't have to worry if you go a bit over on changes !

Have been using Amsoil for 40+ years always my first choice.

Quality product.. use in 3 vehicles

Great oil, Jeep runs a little cooler than the original conventional oil came with.

Good oil good service. Would be nice if you just included funnels with each oil purchase. For what people pay for oil, it would be a great item to just give to customers. They are almost always necessary

My 2014 Chevy Impala Limited loves AmsOil signature series. My engine is running considerably quieter than when using Valvoline. Waiting to see what it looks like when I'm getting closer to an oil change to see how much oil gets used vs Valvoline. If you care about your vehicle and want it to last a long time, make the switch to AmsOil Signature Series!

Great motor oil! Have been using it for years in a 2013 Acura TL.

Great product will always and forever use it

Switched over to AMSOIL a few months ago and I'm very happy with the change. Would recommend to anyone, worth every penny.

This is an exceptional product, perhaps the very best. However the price is quite high. If I were not such an AMSOIL fan I would probably consider something less expensive.

Great wear with this oil

This is the grade that Whipple recommends and is perfect for my Mustang. Have performed several top speed contests, hitting 181MPH in the 2022 Spring Fling Arkansas Mile. Oil looks great and very little in the catch can.

First oil change in my 22 Silverado and I am always g2 run amsoil in it. Wish they had the right filter for me though

Best stuff out there. My Type R loves it! Only oil I will ever use!

Solid quality product best I can tell. Asides from the engine oil that came from the factory, this is the only product that has ever been in my wife’s 2015 Ford Escape. No problems at all!

AMSOIL 100% synthetic motor oil is one of the best engine oils on the market for any vehicle. Just like how clean blood is vital to the success of how our body operates, the types of motor oil you choose can also affect the success of your motor. After 6K on my AMSOIL 100% synthetic oil, I had an oil analyst test done on the oil. It passed with flying colors! The lab indicated, for my style of driving, it was suggested I could drive 10K-12K between oil changes with the current oil I'm using. I would never go that long between oil changes; however, I usually change my oil every 7K or every 6 months. It's reassuring to say the least to change my motor oil knowing that it is still capable of protecting my motor many miles beyond.

Best oil I’ve ever bought!

I can tell my engine likes this oil, runs very smooth and my gas mileage increased.