Customer Ratings & Reviews

I used it in my highlander for both front and rear def. I might use their engine oil 0-20 for the highlander and also my Acura TL but it is little pricey.

The fluid in my rear diff didn't look or smell burnt, however, I had a slight whine and occasional squirmy feeling at the limits of cornering when a single tire would break loose before the other. Amsoil Sever Gear alleviated both issues and combined with engine and transmission oil I have gained a not insignificant amount of mpg as a nice extra benefit!

I use Amsoil gear lubes in all of my cars for top level wear and corrosion protection.

Shipping was quick and can’t go wrong using amsoil

Want your stuff to last use this

Makes that 6 speed change better

Have been using in my GMC Sierra 2500HD for years. I tow a 5th wheel to the maximum weight capacity of my rig. Works great so far and no issues.

Replaced oil in my front and rear differentials. I’m sure it will be better than OEM. At a better price

2004 Chevy 2500 hd 4x4, 6.6 with 230,000 miles. Seems to have quieted down both front and rear differentials with about 500 miles since oil change. I'm very happy using Amsoil for all my fluids.

Never hesitated to put in my snowmobile gear case. Always feel good at below zero temps, lubrication will be there.

Excellent product!! Would definitely recommend this to anyone!

I like the protection it supply’s for the equipment

I changed out the front and rear differentials in my 2013 Cayenne GTS with this. I noticed an immediate improvement in drive-train noise and vibration, better shifting, improved operation of the rear diff locking, and even an improvement in overall mileage out of the vehicle. Solid product.

Just replaced the differential oil and cover with Amsoil severe gear oil, and a Banks diff cover. My 07 Ram is good to go as far as the differentials are concerned. Thank you Amsoil for making a superior product

Timely service and a quality product ,what more can you ask for

Easy to get into diff fill port. Holds up to heat as designed to do.

Replaced my bmw diff fluid with Amsoil once when I got the car new (to me) @40k miles and once just because at 50k miles and the fluid still looked brand new with no residue on the magnetic drain plug. I trust Amsoil and all their products 100%

super smart package, even partially reuseable!

Love the packaging. I use this trusted product for the "quick change" in my race car and the easy pack makes changing gear ratios much faster, cleaner, and easier.

Truck required 6.9 pints, I was shipped 7 quarts did not see until opened all. I guess I have a few extra