Customer Ratings & Reviews

I bought a 2022 Frontier with very low miles. I intend to change oil every 4 to 5k, so, this oil, is over kill for that, I will revert to the lower mileage Signature sieres. With cam.phasers and timing chain guides these days, won't hurt to changer more often so it stays nice and clean inside.

I have a 2017 hyundai Santa fe sport with the 2.4 gdi motor. I just had the valve cover gasket changed by my mechanic buddy. With 175000 miles on it he couldn't believe how clean the top end was. No sludge and the camshafts looked like new with no visible wear or discoloration. The car runs like new! He was thoroughly impressed as I was too! Now he is thinking about becoming an Amsoil dealer! I will always use Amsoil products and signature series oil! Keep up the good work!

I have run this type of oil and all my vehicles for a very long time one of my vehicles actually hit a half million miles without being rebuilt and was very little issues with sensors and all this type of things it actually helped clean up a car that had bad oil put in it cheap stuff and I had to replace the sensors for once the sensors were replaced I never had to do it again the cleaning agents that this all has is unbelievable and it makes sure car run better and will keep the inside of the motor clean and in a lot of cases it'll actually stop cars from using oil but don't count on that the first time sometimes it takes a couple oil changes before you get all of the old junk out but stay with it it's well worth the money

The best oil there is IMO. Been using it for years in everything with an engine and have never had any engine failures or problems.

I have been using amazoil for many years. There is nothing else I will put into my vehicles. I have even had it tested by our local cat. Dealer, after being in for a long period in a period of time, it tested better any other oil by far?

I recently bought a new pickup and I definitely use Amsoil Synthetic for my first oil change. I trust Amsoil to give me an excellent product.

Oil change yesterday Amsoil Signature Series 5W-20 Synthetic in our 2017 Jeep JKU Rubicon. The 3.6 Punster prior to Amsoil had a little lifter tick when sitting between starts. Since I switched to this oil that lifter tick has vanished. Love the product and taking care of our old friend out Jeep.

I keep my vehicles for many years so I run Amsoil for a long life.

Great oil! Used it on 5 vehicles and works well!

I have a q50 and want to baby them turbos so this oil is the only way to go

As a kia owner I’m aware of how sensitive to preventive maintenance these engines are after 55k miles zero issues no oil consumption with 3K mile oil changes.the best oil in the market

Amazing product will never go back to other synthetic products. Thanks

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Outstanding oil

This oil is the real deal. Warm weather performance fantastic, cold weather performance, just as good if not better. I have been having some engine issues since switching to Royal P's race oil, one with high Zinc additives. Terrible, cold or warm, decided to switch to this after doing some research... What a night and day difference it made, truck (5.6L engine for ref.) runs smoother than it ever had!

I did the research and have been using the oil ever since. I will never go back to fake synthetic oils again.

Always got what I ordered in a reasonable time frame. Never had an engine go bad using AMS Oil.

excellent quality and long lasting oil for turbo engines (corolla GR)

Amsoil Signature Series is the best oil on the market. That’s all I use in 5 cars within the family going back to a 2005 Ford Crown Victoria. I don’t use anything else.

I don’t drive a lot of miles, I change my oil every 6 months and never worry about it!