Customer Ratings & Reviews

This product was part of 45,000 mile rear diff oil change. The biggest change I noticed was that when I put the truck into reverse after sitting over night I no longer get a metallic thud when backing out of the garage. It seems as though the oil provides a cushion layer between the gears. I do not track gas mileage or tow a trailer so I can not attest to those issues but I am sure this product would help

Replaced RCF TVD rear diff fluid with severe gear 75w-90 and I felt an instant smoothness when I reversed. It didn't feel stiff or feel as if there was any resistance. Gone 1000 miles so far and it still feels lubricated.

Another great Amsoil product. I used it in my BMW K1600 GTL drive shaft. These drives can be a bit sloppy but it seems quieter and more precise since I put in the Amsoil.

I have heard every bit of good about AMSOIL products for and finally started making the transition over

Best differential oil i have ever used!!

Use this in my Harley Trans Works Great

The only oil to use in a S2000 rear diff! Awesome stuff that holds up to track abuse.

I can tell the difference after changing to Amsoil gear lube in my 2008 FJ Cruiser smooth and quite.

love your product the only thing i use in my cars and trucks

We use it in our gear boxes for our machinery, and recreational products.

From all the online reviews, this was the best choice for heavy duty application. I'm using it for off road high load applialcations and also over the road heavy truck and motor home use.

I have run this in my 2006 ram 1500 hemi 9:25 diff for 5 months in combination with the Amsoil anti slip with zero complaints. Works great in cold weather(-30F), will be using this on all differentials in the future.

I own several motorcycles and use this product in the final drive and transmission. have a combined 75,000 miles with no issues

Off roading demand that U change oil often

Use in my tranny and Qick change round track asphalt car.

Since 2005 I've been a dedicated user of Amsoil products in all of our autos and high performance BMW motorcycles (S1000RR and K1600GT). Never have I had any issues using these products.

Put it in the rear end of my 68 gto. Great great product.!

175,000 trouble free heavy haul miles. The new gear oil pouch makes it so easy so change diff fluid. Make the switch to Amsoil today. Proven protection in the worst conditions.