Customer Ratings & Reviews

I ran this oil in my old 2006 sillverado's differentials for over 200k miles and ever had to repairthem for any reason. I recently put this in both the front and rear end of my 2014 Silverado. The factory oil in the rear end was much thinner and my rear differential was noisy. This oil cured that instantly and now its nice and quiet. Despite this oil being thicker than factory i have not seen any negative difference in fuel economy.

Stopped all noises when shifting from forward to reverse Also added sliplock

Great product, no friction modifier needed, differentials really quiet, piece of mind when towing!

I've changed both front and rear differential with this product very good

I have been using this product for years in my 1996 Heritage Softail Classic. I have reviewed the technical comparison reviews and selected Amsoil over your competitors.

I've been a long time user of Mobil 1 recently switched to amsoil after much research a far superior lubricant.

Drained front differential oil after 100,000 miles still as clean as the day I put it in!

Used for a a 2015 Ram 1500. The old oil came out at 77 k miles. It was foaming extremely bad (air bubbles in oil). I replaced with severe gear and Amsoil's limited slip fluid. I noticed smoother driving characteristics with the severe gear. The truck rolls better. I also noticed a 1 mpg increase in fuel economy.

Great

I have 2013 freightliner Cascadia. Was changing oil in differentials. So far, best product market has to offer. Differentials runs much quieter, lower temperatures. And over all feels so smooth.

Used this in my 18 Ram 2500. Reading some forums, some people had to use limited slip additive in their rear diff because of some chatter even though they have a torsen style limited slip with no clutches. I have not had any of this chatter with this oil.

I use nothing but Amsoil in all our vehicles and equipment.

Great synthetic gear oil.

After 100,000 miles on my 2008 Tacoma I switched to Amsoil and saw noticeable smooth shifts out of my manual transmissions especially in colder weather.

So far, so good. Running it in a FJ cruiser.

Made my unshiftable 2001 Audi TT 6-speed shift like new again in less than 200 miles!

The specialty shop that rebuilt my ford f-150's rear end said to use it if I didn't want to see him again. I have not been back and its been 4 years of hard towing of a camp trailer. I can say it stays clean like no other oil I have used.

Used on my Silverado .Runs great !

so far i'm impressed with Amsoil products, I would recommend Amsoil to all my freinds

Haven't used any other fluid. Change my differentials fluids every 2 years, will not use any other.