Been running in my 05’ 6.0 powerstroke and have great results

No issues for 20 years. I have used this product and will Continue to

I have been using Amsoil now for 2yrs straight. I started using this motor oil with my F350 dually, and also use the Amsoil 20micron filter. So far so good. I have seen the oil retain its viscosity better during my regular oil change frequency as compared to the Rotella T I was using (NOTE: Rotella T is great oil also). As a result, I have become an Amsoil convert. Am still sticking to the traditional Ford oil change frequency that is estimated by the truck's onboard computer (approx 7000mi), for the simple reason that oil is relatively cheap when compared to the price of a failed engine. :-) Last, from the information I have read I do think that Amsoil will extend the life of my engine (currently at approximately 160,000mi).

Lightning fast shipping! Great motor oil. Says you can use it for extended mileage, altho when I change my oil I can feel and hear the Motor running quieter and it feels smoother. Maybe thats a filter thing but I don't push it that far past OM recommendations. I bout my 2018 Ram with the Cummins in 2019 with 420 miles on it and this is the only oil I have used! Got 170k on it now. It's completely stock. I use the Stratapore filter by fleetguard.

I have been using Amsoil Diesel oil since I started farming and bought my first tractor, a used JD 4430 in 1979. That tractor is still used in my farming operation. It still does not use any oil, starts better in cold weather, and has been less expensive to maintain by far than neighbors using even other brands of synthetic oils.

Great oil, been using from day one ever since I bought my truck brand new!

I only run Amsoil Signature Series in my Twin-Turbo BMW X5s. I run them pretty hard and keep them serviced every 6000 miles and NO problems ever-Thanks! Jim

Good product

I've been a diesel tech, boat tech and advisor for years now. I started using AMSOIL in my 00 7.3l a long time ago, I noticed smoother injector operation and better response. Since then, AMSOIL is in all of my diesels! My 19 model SuperDuty feels more free and helps with response and keeping decent mileage. I use the filters as well! I will continue using AMSOIL over typical conventional oils, thanks AMSOIL for a great product.

This is the only oil I would use.

This oil has proven to be the best. It lasts longer and my engine sounds and runs amazing when I use it.

Fast and on time. Love to get oil and filters at one place.

Why not use the best oil in your tractor. If you want it to last use the best. Bought my tractor used with only 125 hours on it and I would like it to last the rest of my life. A soil is cheap insurance for your engine. When it comes time to change my hydraulic fluid I know where I will shop.

I have been using Amsoil oil products on and off for over two decades. No matter what I have tried I always end up coming back to Amsoil. Probably the best diesel engine oil on the market. If you can afford a new diesel, you can afford quality diesel engine oil. Don't be dumb and go cheap on oil changes.

So I ordered my oil and it was delivered elsewhere. I emailed amsoil and without hesitation they sent me a replacement box! They are the best and their customer service is phenomenal. I am a lifetime customer from now on!

Oil seems to be working great. Oil pressures are good and temps are great as well. Truck seems to like it and is running well with it.

Absolutely love this product. It is all I run in my 2015 f-250 6.7 power stroke.

this is the best oil on the market

I have used Amsoil 5w/40 in my diesel F250 since 2008 I would not use anything else!

great product