I have been using Amsoil for a number of years. It is nice to have the extended oil change interval as well as having the best engine protection from wear available. I've put on over 200,000 miles on several vehicles with no engine issues.

92,000 miles and the only oil I have ever used.

First oil change in my new Motorhome. Only had 1500 Miles, but I had to get the mystery oil replaced.

Amsoil is the only oil I’ll run in my Ecoboost F150 and my Harley (not this weight).

I have been using Amsoil since 1975.

I have been using Amsoil for more than 10 years and it always lives up to my expectations. I run this 5w20 in my 2018 F150 Coyote. My only gripe is that the price keeps going up on all products, every time I get ready to reorder, it seems like they have gone up again.

It's really hot at this location in Southeast, Texas. This oil is now in a 2007 Tahoe with 120,000 + miles. There has been an slight clacking in the motor since I got it with 80,000 miles. When I put Amsoil, Synthetic, SAE 5W-30, in about 5 minutes the clacking stopped. So, I must say THANK YOU.

I’ve been using this oil for years on my farm trucks and my ‘04 Cobra mustang. Amsoil takes the heat and rough enviroment and sometimes prolonged oil changes with ease. Is there any better?

Car runs extremely smooth and gets better mpg’s.

I used to use Mobil One for many years. No regrets but several friends told me about Amsoil so I thought I’d give it a try. Did not disappoint. Extremely satisfied I made the switch. I’m especially impressed with the product line of other lubricants Amsoil has to offer. I’m a fan!!!

I have used synthetic oils is my personal trucks since 2004. Amsoil Signature Series 5W-20 is the best synthetic oil that I have ever used. I would recommend Amsoil products to anyone who wants to ensure that they are protecting their vehicles to the max. Thanks Amsoil ! KMurph Calvary, Ga.

2017 Hyundai Santa Fe and 2005 Dodge Magnum with the hemi. Motors are so clean and smooth running with this oil I will never switch. When the wife notices how nice they run with this oil that speaks volumes! Lol

The best quality motor oil in the market. No one comes closer. The leader in synthetic.

works as good if not better than advertised, always has.

Amsoil is the best oil I use it in all my vehicles love the long drain intervals

The best oil I have ever used it actually lowered my engine temp and stop lifter chatter at start up

The best oil!!! Great service and fast shipping! Thanks, Jim.

Amsoil’s the only oil I’ll ever use in any motor.

This is the best Oil Available I have been using this oil for many years and it is the best

I ordered this for my car, it arrived quickly. I used this for the past two oil changes and it comes out looking very clean.