Customer Ratings & Reviews

Put 3 bottles in one 100 gallon tank on an International mv with a cummins and got .2 mpg better on that one fill.

This oil does what it says it does and more. Truck has 164000 miles and it runs smooth

Iv'e been using this product in my 1997 ford f-350, 7.3 power stroke for some time now. So far so good, engine is running great.

Great product !!! In few, words, I use only Amsoil for my truck..: engine and differential oil ( synthetic for both) and also the Amsoil coolant. Besides, the diesel additives ( from Amsoil). So...Amsoil all the way !!!!!

I have only been using Amsoil’s products for about 4 years and I love it! Stopped the injection issues in my truck.

I use the cleaner every third tank to keep my Ford F-250 running great!

Works great

Easy ordering, fair price, and reliable Amsoil product. I saw better gas milage results after using the product too

I use this product to help keep my injectors clean and operating properly. I have been using this injection clean since I bought the vehicle new.

In the diesel fuel.

I believe in all Amsoil products so I use injector clean at every fill up

Used this in my 2011 Ram 3500 with 110k miles. Put it in before we went on a trip from Alabama to Virginia expecting to notice some sort of difference in throttle response or mpgs, but not so much. I'm a firm believer in Amsoil oil in all of my vehicles but this just didn't seem to live up to expectations. I'm sure it did some unseen good for the internal components, just nothing noticeable.

It works as advertised.

I use everything amsoil used it on a road trip is winter blend picked up little over 1.5 mpg

Use this product whenever it comes time to change my fuel filter.

You can feel the difference

Always loved using this product. The case of 6 fits perfectly in my toolbox. I have a 2005 F-250 with the 6.0L and still have factory injectors at 222,000 miles. Plus the added fuel mileage is a bonus.

90,000 + miles no problems exhaust very clean