Customer Ratings & Reviews

225k on my 2004 Dodge Ram 2500. Looking forward to another 225k problem free.

Only oil I run in my daily driven diesels

Great product

I have been using AMSOIL for 27 years and my truck has 353410 miles on it and it runs like new. I use AMSOIL products in all my machines

This oil is a no brainer. You simply can’t beat the value of this oil. It offers superior protection for a very affordable price!

I was using Lucas magnum for my 2018 Superduty 6.7L. They were on backorder so I looked to Amsoil. I have read nothing but excellent reviews about Amsoil so I decided to give it a shot. So far no complaints seems to be doing it's job time will tell.

I have used amsoil for years and never had a complaint. I ordered an oil filter and they sent me the wrong one. I emailed them about it and they never replied. I emailed a person directly who I talked to before and nothing. So far I'm stuck with a useless oil filter. I went to a more reliable source and ordered the correct filters from Amazon. Great oil though.

Noticeable performance and protection. I can hear the difference in the engine

Been using Amsoil motor oil in everything I own for several years, drain plug magnets always show less metallic particles than I had using other motor oils which tells me there is less wear inside the engine.

You can’t go wrong with AMSOIL. So far I’ve had excellent results with these products!

Use this product in Kubota F2400 front deck mower, was using about a quart between oil changes, upgraded with this oil, quit using oil!!!

I would recommend this product to anyone I use it in my 2013 6.7 and it works great.

like Amsoil products

My Amsoil Rep recommended this oil for my 7.3 Ford Superduty. I have been using it for 140K miles without issues. The vehicle has 241K on it and has been trouble free since I purchased it 21 years ago. I only wish I had used it the oil for its 1st 100K miles. I recommend Amsoil products to all my friends.

My MPG have improved. Truck runs quieter and smoother.

This is the only products I will use in my 05 F350 6.0. Always great talking with Nathan Peszko about the new products and what I want to order. He always ships it to my house.

In 1978, the military did a study on synthetic oils in the Fairbanks area to see which were the best. AMS Oil was rated the best and I've used it ever since... to include 2 years in Fairbanks and 3 years in Anchorage. Nothing works better in really cold weather and l have complete confidence in it.

My truck seems to like this oil

Works great in my Nido powered zero turn as I generally mow 2 acres once a week plus another 4 acres every other week. Very dusty conditions. Normally never had an oil related issue or overheating issue. Highly recommend.

My 380,000+ mile 24v cummins loves this stuff.