Customer Ratings & Reviews

I highly recommend Amsoil products to anyone who is interested in keeping their diesel or gas engine running far longer than any other oil. This is especially true for anyone who uses their diesel vehicles as hard as I do. I keep up with the maintenance but I haul trailers with loads of 10,000 to 14,000 lbs sometimes 1,000 to 1,200 miles at 75 to 80 miles an hour. I rely on Amsoil to keep my pickup going and I haven’t had a oil related failure with my current pickup or the last two that I owned. Can’t say about the oil I was using before.

Extra protection for the truck. All lubricants have been changed to Aimsoil.

Lab testing says 'oil's still good' after 17K miles in a Duramax. Been using this since '06. Only oil I'll use in my LBZ!

I have been using Amsoil in my Dodge 2500 5.9L for a long time and it is the only oil I trust. All of the Amsoil products provide the best performance and protection. They are the only ones I use.

Anything Ams is too quality top notch beats everyone else. If you don't believe me get an couple old pans and an OUTDOOR camp stove. Put AMS against anything else and I garantee it will shock you. Be careful. I simply won't put anything else in my vehicles or toys.

I have used other brands’ cheaper full synthetic engine oils in the past, but after switching to Signature Series oil in my ‘97 12v, I have noticed quieter and smoother engine operation from the oil change alone. My truck is going on 400k miles, and it’s safe to say it will the Signature Series treatment going forward.

I broke my 2003 duramax in and switched to Amsoil 15-40 and now have over 800,000kms on it with out ever removing the valve covers and it is still running strong

I have a lifted 2014 ram 2500. since I start using amsoil it runs smoother and quieter for longer. I 100% recommend them

Ordering from AMSOIL is always super fast shipping and the best quality of oil out there. I run it in all my Vehicles which is including my 18 turbo RZR and my built Harley.

What can possibly be better than Amsoil? If you could eat this product, I would have it for breakfast daily!

Been good oil for me but it’s the 2nd time I’ve got the wrong filter that I ordered. I quit ordering for this reason because I live far out. Had to go buy a new filter again and now I this one that doesn’t fit.

Been running this oil from new purchase 2016 of truck

Great oil for my 2017 F250 6.7 diesel.. gear boxes an tranny next.

This is the best oil out there! I won’t use anything but amsoil product in my truck and car

I like Amsoil's quality and their constant testing.

We go 8000 mi. Between oil change now

Like the title says great oil, and it was in stock when I ordered it, and arrived with in a week of ordering. Planned on changing to Amsoil, and when the stores supply of the other brand I had used I changed.

I have your products in racing with great success. The diesel oil is for my wife’s truck which she makes trips to Tennessee, Missouri,Kentucky,& Texas pulling a43 ft horse trailer I like make sure things are protected the best way possible I believe Amsoil does that.

Best oil on the market! You can actually feel the difference when you put some between your finger tips. I trust this oil in my '96 Powerstroke for a year at a time. (I don't put a lot of miles on it in a year).

The easy pack seal is very hard to open, and a pain in the but, the seal on top is not easy to open, first I tried to pull on the tab, could not open seal, then I got pliers, ripped the tab off trying to open, then I used my pocket knife, poked a hole in the seal, then used pliers to tear it off…..holy crap….that needs change, the oil I have no complaints about….excellent oil.