Customer Ratings & Reviews

Good lasting oil, I would recommend pumping the oil of the the jugs into your motor.

Delivery was quick and painless. Received the product in two days. Way faster than I thought.

5 star products

We have been using AMSOIL in our diesel Chevy Silverado since 2010 when we purchased it. Very satisfied with the product. I like the fact that we can go longer between oil changes which means it costs less.

I'v been using Amsoil in my Dura-max, Harley and my boats. I'v never had a problem yet ! Yes it cost more but, I haven had to put anything in the shop ! I order on line and it's at my door within a few days.

It’s more expensive oil but cheaper in the long run. Longer oil intervals and piece of mind you’re using best oil on the market.

I use it in all of my diesel trucks and equipment for wear protection

Just switched over to this for my diesel pusher motorhome. Can’t wait to see how it will run now.

So far it is doing better than any oil I have used,time will tell .

I use this in my 2005 Powerstroke and have been using it sine the truck was new.

Amsoil is the only oil that I use. In my opinion it is the best oil on the market.

Very good oil use in all vehicles

Put it in my 99 F250 with 249000 miles on it. I have run it approximately 1000 miles and the 7.3 powerstroke is quieter. Seems to start easier. Anxious to see how it holds up pulling our camper. So far love it!!! My only problem is I have made 2 orders and I have not received any free items that I was supposed to. But very satisfied with the oil!!!

Improved my fuel economy by about .3 mpg on my 2017 L5P Duramax over shell rotunda. Been using it for 30k miles with 4-5k change intervals. Fuel economy gains seem to diminish after 5k and I’ll suddenly burn a half a quart around that 4-5k mark then I change it. I realize I can get more miles out of this oil but it gets super dirty from the emissions puking back through the crankcase and I really like peace of mind! It’s great oil and I recommend to anyone.

Love your synthetic products.

The oil is great. However, my promo prize was sent to the wrong address.

After my distributor moved, I had to resort to using Rotella until I found a new one. I've used Amsoil for about 6 years. It is more expensive, but after sinking $11,000 into my truck for new injectors and other upgrades it's all I use. I trust it to keep my truck running like new. It has 220k miles and runs great. We pull a fifth wheel in the spring, summer and fall. I have NEVER had to add oil. My operating temperature is always steady and there is a difference in noise reduction with Amsoil. The extra money is worth peace of mind to just get in and go anywhere. I'm a customer for life.

Engine seems to run quieter on Amsoil. Love the 10 quart jug.

I have switched everything I own o er to Amsoil. Thus product in particular, has improved my 2005 W-900 wear metals by 70% according to wix oil analysis. I e seen a difference in fuel mileage, & rough start ups as well. I run this oil 30-35k miles. I change all filters @ 15-18k & top off!! Also have an Amsoil oil bypass system in that helps

this diesel oil is good. better than Mobil 1.