Customer Ratings & Reviews

Superior lubricant, 100K miles warranty, neutral to seals (no leaks). Tested on three cars. Highly recommend every one.

This weight works perfect with the smart lock in my X3. No issues at all with 349 miles on the new gear lube

Change the front & rear gear oil on my 2014 Chevy Traverse LZT, I can hear and feel the difference when driving, after I change the oil we took 2000 miles family trip my Chevy perform great! Plus big saving by changing with the best oil myself it was EASY, I just order more to change the gear oil on my 2017 GMC Denali :) 1000% Satify and great custumer service.

Replaced my differential fluid with this. After replacing both diffs, transmission and transfer case fluid my Frontier is getting 1 MPG better than before.

Best gear oil ever.I use it in my 4x4 and motorcycle.

Great product and easy to use

Great product and easy to use

Amsoil severe gear is all I use for my BMW R1200GS final drive and gearbox. I also use the severe gear in my Jeep differentials.

06 Mega Cab with 232,+++ miles. 3rd time I change the oil. Magnet barely has metal sludge. Regularly pull 32" RV (5-7) times a year... Missouri, Fla, Texas etc. Truck is all AMSOIL products-- oils, grease, brake fluid etc. Worth it!!!!

use amsoil for all your equipment don't risk it with cheap oils.

Been using Amsoil in all my off-road vehicles and a drag car, never had an issue. Stays clean for a long time.

My original order was damaged and disposed of in shipment by UPS. I received an email from UPS about the problem and they said they would notify the Amsoil. When not hearing from Amsoil I contacted my salesman and he told me to call customer service. I notified customer service and got no response. I contacted my salesman again and he said " Like I told you . Call customer service." I wonder just what is the "Salesman's" job?

Used the Amsoil severe gear in my 2005 Corvette differential after getting some chatter when making low speed turns. Using the pouch made it so much easier to fill the diff and after filling and driving the car my chatter was gone. Thanks Amsoil!

Been a fan of Amsoil since using it my race car in the late 70's because of that I decided to go with their gear oil for my dually plus the easy pour package made the job very easy and clean.

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