Customer Ratings & Reviews

I bought 75w-90 for my rear differential and front ptu I've already changed the rear differential gear oil and it has quieted the rear noise i was having i changed it at 52000 miles and happy i did this gear oul is much better then the oem ill be changing the front ptu soon as weather allows id definitely recommend this product to others as it high quality and exceeds the owm gear oil

Great packaging makes it easy to fill the front and rear differential cases on my truck

Easy to use and quality product.

I have used Amsoil off and on for years and have come to the conclusion that from now on there will not be any other product that will be used in my vehicles. Now there is no excuse for not using the best. Their customer service, product selection and lightning quick delivery is second to none. I have trusted the quality of their products and know that my vehicles are better off.

Great oil products at very good price

This fluid worked great.

This stuff is great I was a little hesitant at first because of the price being a little more but like the saying goes you get what you pay for and this stuff is great quality not to mention the packs are super easy to use and convenient definitely will buy again my 5th gen Cummins loves it

I recommend using amsoil in anything you care about. I’ve been using their products for over 30 years and can’t say anything bad about them

Used this to replace the rear differential fluid on my 1999 GMC Sierra 1500 RWD and man what a difference. Immediate noticeable difference in smoothness of power transfer as well as easy movement at highway speeds 80+. All in all I would highly recommend this product as a replacement and considerable upgrade for any application.

Any of my vehicles that use this viscosity I use Amsoil gear oil. 2017 Ram 3500, 2019 Jeep JL, 1996 Tacoma

Routine diff changes, worked well before works well after. The guys really interested in differences in lubricant formulas seem to land on amsoil products often.

I do this fluid in my axles every 30,000. No signs of wear. Fluid is always clean no burnt smell and trucks tight and strong 94,000 miles

I could tell the difference accelerating and hauling a trailer with quads up the mountains. It feels like it gave my truck more power. I would definitely recommend this product and I'll be purchasing Amsoil again!

Works great in my 2004 Jeep Grand Cherokee limited for the front and rear differentials. I like how it comes with friction modifiers already added.

It was a great experience from ordering to receive to pouring in the product easy without having to use a pump

I have used this in my Harley’s and find it makes rhe gear shifting smoother than using Harley 20w50 oil in transmission.

Just swapped into my GMC and the job was so much easier with these bags not having to pump or figure out some crazy way to refill my front and rear differential especially in limited space.

Shipping was quick. Containers make it easy to put gear live in differential without getting other tools dirty.

I like their oil. I use this stuff exclusively. I live remote so easy to order and fast shipping.

Have used severe gear in my 4x4 vehicles. Nothing else touches my gears! HIGHLY recommend.