Customer Ratings & Reviews

I tow and the temps are low

I have run Amsoil for years. Its the only fluids that I trust in my truck

I use this in my from and rear axles on my Toyota 4x4 and my Arm's. Have used this stuff for many years and love it

I use this product in all my vehicles. Wouldnt trust anything else. You get what you pay for and pay for what you get. Great stuff!

Excellent product for differential protection

I use 100% amsoil products. I have a modified camaro ZL-1 with 940 HP at the crank. The gear lube and engine perform flawlessly. I maintaing at least 3 to 4 lbs more oil pressure throughout the life of the oil. I will never switch brands.

Simply the best hands down. My trucks tow heavy in the most extreme heat conditions, this can be torture on gears. I typically run my trucks to about 500k then replace them. To date I have never had a single issue in the rear end at all, other than the occasional pinion seal. Do yourself a favor and step up to real protection.

I've just did the second diff service on my Toyota Tundra. The oil that came out still looked brand new after 30000 miles. I'll go longer on the next service for sure.

This stuff is great.

Amsoil does not control friction modifier, so if you have a limited slip diff don't use the gear oil alone!!!!!!

Noting but the best

Been using this in my Z06 Corvette for a few years with some track time and very happy with the product. No need for a limited slip additive. Changing it this spring.

Heavy gear oil, quality in ever bottle. Switched everything in my truck over to Amsoil, you can tell the difference too. She sure rolls easy and quiet too. Even put the full bypass system on with the dbl cans

Great oil!

I use AMSOIL for everything because AMSOIL is what is called a Reference oil. An oil that all other oil Mfr's aspire to be like. A bench-mark oil. Would not, could not use anything else!!!

My front and rear diffs love this stuff !! Temps dropped considerably after swapping to this !!

Use this amazing gl5 gear oil from the diffs in my duramax to the diffs in my 600whp Mitsubishi Evo. They are always ready for the challenge!

I use this in my 2014 Harley-Davidson Motorcycle. The transmission shifts smoother and runs quieter. I also use the 20-50 Synthetic in the crankcase, where I notice smoother operation and lower temperatures.

I am using this in my truck and my SUV, it work great

I know Amsoil is the best. Anything with Amsoil in it will live its intended lifespan.