I did my transfercase and diff fulid, running alot smoother and fuel economy has improved!

This oil is the best to work with. I use this oil on all my 2-stroke machines for maximum performance! Highly recommend this gear oil!

Best gear oil you can buy.

Products are good, and love that they test there products against other oils.

I don’t know if it’s just a sense of security because I swapped out the unknown fluid in the rear end of my RX7 with Amsoil. But I feel like this fluid really helped smooth things out in the rear end.

I recently used AMSOIL Severe Gear 80w-90 to replace the rear end oil in my electric golf cart. While the manufacturer recommends SAE30 for this application, I just couldn’t bring myself to use MOTOR oil for GEARS. The Easy Pack packaging is incredible and very easy to use. Despite not putting it to the maximum test, it’s been working perfectly so far. I referred to viscosity charts and chose the closest option I could weight-wise to the recommended SAE30. Overall, it’s been a great choice for my needs.

my kaiser M715 shifts better now that it ever has especially in cold weather, 11k miles on it. I also run amsoil in my 2014 ram 2500 4x4 automatic diesel,125,000 miles on it

Great product, arrived quick and the packaged is very convenient.

Have not had a chance to use it yet, I will on my 2001 F350 diesel as soon as I can it on a lift

Best lubricate available! My son put me onto AMSOIL over 25 years ago. I use it on all my equipment on the ranch. Trucks, tractors, feed wagons, 4 wheelers and gear boxes. I've had two run around little pickups that I put over 400,000 miles on running on all kinds of roads dirt, gravel and paved. And only changed the oil every 25k miles. Even on my tractors I have been able to double the hours before changes. Yes American runs on Freedom and that's not Maga it's real AMERICANS that run on AMSOIL !

Cut the whining noise down by 50%. Love it! The bag is a great design too.

Honestly, I could not tell you if this is better than other products. Have used Amzoil gear oils for many years with no problems but I’m pretty easy on my vehicles.

I put amsoil 80w90 in my 2020 ford Ranger's front differential, as well as the rear differential. I know this stuff is better than oem stuff. I feel a lot better knowing the gears will be in good health. It was super easy changing the fluid. Just fill up fill it runs out and boom , your trucks safe. Thanks amsoil

If i could..I wouldn't use anything but AMSOIL. Thankful.....Greatful.. Truck runs really good !

Always been a fan of amsoil, this 80w/90 is now being used in my 2018 tundra that I commute daily with and go offroading with. Knowing my gears are properly lubed and well supported with a sever gear type for terrains and temp I can go heavy foot on the pedal without any worries.

Good stuff

The product was installed. So far so good.

very good ,,excellent product

Perfect rear diff fluid for my 2wd '03 Tundra, with the limited-slip diff. Already has the friction modifiers it needs. And the pouch made it super easy to get the fluid in the diff

I decided to change my Differential Fluid along with my transmission Fluid since they work together and even though my Old Fluid was clean I just felt better knowing it’s been changed since I didn’t know the history of my Lexus but I’m highly satisfied