Customer Ratings & Reviews

Switched from the purple company and this is a better product

I use this in my differentials and my transmissions, it has been nothing short of amazing! It's most noticeable in transmissions, with smoother engagement, easier cold-weather shifting, and keeping noise down.

Great lubricant. I can feel a difference in heat on differentials.

Best performance oil available! Best company support.

This Gear Lube has never let me down. I change it at regular intervals, despite its extended ability. Still, I know it is reducing friction and wear, and keeping the drivetrain in tip top shape.

Wow this absolutely blew my expectations! It’s a night and day difference between your traditional 80-90w.

AMSOIL Severe 75W-90 is phenomenal gear oil. I’ve ran it in my ‘01 4Runner for years now with great results, and when drained from the rear differential, it still looks like new! I’ll never use any other gear oil than this one.

Used it in my 2016 ram 2500 6.7 Cummins rear and front differential. So far it’s working great!

Love the easy fill pouches! Hands down.

I changed the gear oil in my front and rear differential and noticed that when I drove there was way less resistance due to the heavy oil I was using

Very easy to put it in.

Smooth like Butta. Gotta getcha some of this and put it in !!!

This has to be the easiest Diff fluid change ever. Pull fill plug, pull drain plug (yes, in that order) cut the top of the spout off and squeeze the bag to fill untill it's full. Simple, not messy, easy. Amsoil is the best.

Best gear oil on the market. Not sold on the bag yet, the end cap would be the only thing I would change. It did not fit in the areas I needed (Can-Am outlander Gear box/Diff).

Best gear oil on the market. Not sold on the bag yet, the end cap would be the only thing I would change. It did not fit in the areas I needed (Can-Am outlander Gear box/Diff).

It’s amsoil this thing worked great

Easy to use and put in. I seem to gain some fuel mileage. I did this on my 2002&2003 Tahoe. I did change all fluids with Amsoil products.

Excellent product

This along with the limited slip additive was exactly what my 2002 Explorer called for and differential is running smoothly and quietly.

Great product and might switch over my engine oil to amoils