Customer Ratings & Reviews

My first drain and fill I had about 10,000 mi on my rear end the stuff came out as dark as molasses then I put amsoil in waited 35,000 MI and the stuff pretty much looked brand new everyday I'm always convinced this stuff is the best.

Change out all my diff fluid on 2014 jeep wrangler. I have used this in all my vehicles never had a problem. That’s why when I get something change fluids. Most my vehicles get to around 300 some thousand. Never have a problem.

I would be nice if you were to sell it in gallon jugs as before. I have the pumps, but know jugs now. Bags seem to work just fine.

Replaced the factory differential oils front and rear in my Gladiator. I have seen a lot reviews so I thought I’d try it. The bag made it so easy to fill. Definitely feel protected and would highly recommend!

I have not had this long I just now used it so I could not tell you anymore than that at this time. So far I'm sticking with them

Put this in my lly duramax, my rear end seems to stay quite a bit cooler than it did with the fluid that was in it. I drive about 1200 miles a week, and on the weekends tow a 14ft dump. No complaints

Felt a difference in performance after putting in the Severe Gear !

Must have for differential fluid change , makes the fluid change a breeze since great engineers put the fill plug in the most awkward place they could.

Installed 75W-90 Gear Oil in my backhoe, and transmission seems quietier

Went from standard 75w-140 to this upgraded formula following installation of a limited slip rear. Used AMSOIL for decades.

The best Gear Oil.

Had a slight whine in the diff. On my C6 Vette Drained and put the Amsoil severe gear in. All is quite now. Can't beat Amsoil products All I use now is Amsoil.

I use this in my Harleys transmission. Works better than regular oil or transmission specific oil. No clunk from the transmission when you use this.

The lube is clear and is easy to use in the new packs. I trust all my vehicles to Amsoil products.

We use this in our Ram 2500 which pulls a travel trailer. Seems to perform well and stay relatively clean. It's an expensive product, but a good value in protecting very costly differentials.

Works great

Been running this gear oil in my dirt race car, in the transmission and differential, have not broken a gear in years, Thanks

All good

Pouches made it easy.

Impressive. I used Amsoil Severe Gear for a rear diff service. In my opinion, the rear diff is a bit quieter. Engagement on turns or into driveways seems a bit better.