Customer Ratings & Reviews

I have a 2016 Silverado 2500hd LML. When I purchased the truck it had 120,000 miles on it. I have used this product since the first full service that I did on the truck. I change the oil every 5000 miles it runs quit and smooth. Although it is pricey I will remain using it

Very consent product. I know when a purchase this oil I'm getting a great product every time.

Quality product

Everything runs better with Amsoil oil. I use this in my Duramax.

Bought a new 2022 ram 2500 diesel. After a thousand mile break in I changed the oil too amsoil full synthetic six-time protection. I pull a trailer so I want the highest protection I can get in our very hot Redding weather. I will continue to use this oil in my ram!

I have used these oil products in my last 3 diesel trucks which don't get a ton of annual miles but I always use the best quality oil with long drain intervals which makes it nice.

Every 10,000 miles at the time I change my oil, doesn’t seem to be using as much as the factory oil usage. So that’s definitely a plus! Will continue to buy AMSOIL!!

I have had great luck with amsoil

I’ve used the standard/basic 15w-40 HD synthetic in my 97OBS for decades. With new injectors/hpop/ipr/turbo and inter cooler along with Marty’s e-fuel system I wanted added protection and extended service intervals.

I have three diesel pick ups and I use this oil in all of them. Great oil and I love the longer intervals between oil changes!

I have ALWAYS been and always will be a firm believer that Amsoil is the best there is. I run Amsoil in both my trucks and my SxS.

Great oil, easy starts in cold weather. Keeps engine clean.

Amsoil makes a great product ,I have used this for all of the life of my LMM diesel and it is at approximately 330000 km's. I would recommend their products on any gas or diesel. Here's to the next 330000. 😊

Awesome product and was shipped in a very timely manner .. will use this product for the life of the truck..21 Chevy 2500 Duramax

I usually change oil every 10K but if it goes over that I am not worried. Amsoil will continue to provide protection.

I always use Amsoil when I am traveling and pulling my RV. It gives me peace of mind knowing I use the best.

I have used this oil in my 1997 Ram 12 valve diesel for many years. I tried other brands designed for diesel engines but none perform as well as AMSOIL. I have less oil consumption and believe it or not, my oil stays cleaner over the life of the oil change interval. Well worth the extra cost.

Motor runs quieter and smoother.

The 2.5 gal jug makes an oil change super easy.

Excellent oil