Customer Ratings & Reviews

I have used and only used Amsoil in my 2004 Dodge 2500 with the 5.9 HO Cummins. The wear protection and the oil life is amazing.

This oil is all that it says it is.

The only oil I trust for my twin turbo Duramax

I've been using Amsoil motor oil in my 2007 Ford F350 diesel now for past 9 years. Each time I change the oil, which is every 5000 to 6000 miles, I also take an oil sample for lab analysis. The lab reports have always good. No appreciable wear, and it's viscosity after 6000 miles is well within acceptable ranges. Internal parts of the engine remain extremely clean, no deposits or sludge buildup. I also use Amsoil XL motor oil in my 2016 Subaru Outback, and before that, a 2010 Forester and never had any engine problems. I am extremely sattisfied with all their products, from engine oils to gear lubes, which I have been using in my F350 for 9 years.

I have been using AMSOIL in my GM tow trucks sense 2000. I have out over 300,000 miles on 3 GM pickup trucks, while towing my 34' Airstream in all the lower 48 states, 2 summers in Alaska, and all but one Canadian Provence's. I put a dual filter kit on my 2000 GMC 2500 gas truck, and switched to AMSOIL when it had 3000 miles on it. I set up an oil diagnosis program at a 3rd party lab. I setup a system of monitoring my oil every 3 months, but only changing it one time per year (usually about 20,000 miles mostly towing the 10,000 pound Airstream). I would change the full flow filter 2 times per year, and the bypass filter one time per year. I bib not get a recommendation to change the oil from the lab in 3 years. I had no problems with the engine in the 125,000 miles I put on it. I traded the truck for a 2004 GMC 2500 diesel truck, and went through the same setup of the oil change system using AMSOIL Diesel oil. I put 122,000 miles on that truck, with no oil related problems. I sold the truck to a friend and bought a 2015 Chevy 3500 diesel truck, and you guessed it, it has the same oil system setup on it. It now has 30,000 miles with no problems to date. The 2004 truck I sold to my friend is still using AMSOIL, and changing it one time per year. It is still being used to tow a travel trailer, but I do not know how many miles it has on it now. I would recommend AMSOIL and their Dual Filter System to anyone that puts tough miles on their truck every year.

This oil quietnes down all Diesel engines and last long with no signs of thermal breakdwn

I use AMSOIL in everything I own.

Amsoil is the best oil products out there. I run heavy loads with my truck and travel a lot. I get great mileage out this oil and it holds up to the extreme temperatures here.

Just hit the 40K mark in a 2016 EcoDiesel. Only run the best oil and no worrys. Have used AmsOil in all my vehicles, boats, and ATVs for over 10 tens with NO engine problems.

I switched my 2016 Ford 6.7 diesel oil @ 60K miles...with 126K on it now and driving 100K per year towing heavy loads"half the miles". I trust this engine oil above all others and expect to get at least 500K on the engine before I buy another one!!!!!

This oil flows pretty good when the temperature gets down to zero.

used in a 6.0 Powerstroke. Probably the most demanding motor of oil because of the design of the 6.0 Powerstroke and the use of the oil to hydraulicly power the injectors.

This product is a good product that is good for a wide range of diesels. I run this in a 02 Ford F-250 and will be running it in a new Ram 2500.

Been using this in my diesel truck for years with never a problem. Online ordering was quick and easy!

I use this in a 2000 7.3 Ford Diesel. Motor has over 200,000 miles and still runs like a top. I will continue using Amsoil products; my engines run great and stand up very well with their products.

Use in my tuned 2006 2500 Dodge Ram Laramie Mega Cab. Many miles and still runs like champ!

Simply put, Amsoil is the only product I will use on all my vehicles, if I can help it. Have been using Amsoil since my first FORD SVT LIGHTNING in 1993. I am using the diesel oils for my foreign vehicle, a Ford Everest, that's made in Asia. I have also used the diesel oil in my farm vehicles, a Dodge Ram 3500, and other diesel engines. You can't go wrong with AMSOIL.

My truck just keeps running smoothly. I TRUST Amsoil.

I had this oil in my L5P Diuramax for 5,000 miles. I have never heard such a loud clicking noise come from this motors till I put this oil in. Will never use again. Oil consumption went from zero to adding a half quart every 1500 miles with this oil. Could not wait to get it out of my engine.

I have been using Amsoil for a very long time. I love when they come out with enhancements like this new diesel oil. I will take all the protection I can't get.