Of all the gear oils I have seen, this is definitely one of them.

the item leaked lost almost half of the gear oil

Chose this oil over GM factory oil since the GM part number was listed on the package. I like that it was the exact same viscosity so as to get the Amsoil quality as well as maintain fuel economy.

The product is superior. The time it took to get, however, is ridiculous. Ordered on December 16, 2024. It’s January 16th 2025 and I still haven’t received it. The first package that came in was missing the product. The second package never made it. The third package showed up with the wrong weight.

I have used Amsoil 7590 gear oil in my differentials on my 2004 Dodge Dakota I feel less resistance coming from my differentials and seems to be working great no chattering I did add the limited slip differential additive with it because I read that in the Dakotas they need extra additive I know that the severe gear comes with it already in there but from what I've read it wasn't enough

Rear differential gear oil worked exactly as advertised. Easy pour and no mess. Limited slip diff perfect. Happy with customer

Gear oil worked exactly as advertised. Easy pour and no mess. Happy with customer

Love that the product is in the bags and that this product out last any other product out there!

The no mess pouch makes it easier to put the lube in the differential and everything feels smooth when driving.

This is the first time I bought gear oil from AmSoil. I got this for the rear in the Mrs F150, along with a new diff cover & lubelocker gasket. I made the rear practically bulletproof. Initial driving, we both feel a difference in pickup & acceleration & neither of us were expecting it. This is quality gear oil.

This is the only oil/ lube for the Tranfer case besides Engine oil that Amsoil has for the 3rd Generation Honda Pilot Touring/Elite 9 speed . I hope they come out with a Transmission 3.1 Honda Spec Transmission oil and Dual pump II Differential oil. That would be awesome 👌

Changed the PTU, Differential fluids and did a flush on the transmission shifts so much better now.

This stuff is just what advertised, it is extreme, this with slip lock and a very noisy high mileage heavy duty rear-end guietened down and stop chattering

Worked great, easily filled the front diff of my 04 Silverado and it came with a sticker, which is arguably the best part. Would recommend!

Perfect

I first tried 75w-140 for a year in the rear 10.5. Then decided to upgrade my differentials and gears. Seeing the gear wear (mirror shine) and the improved performance (mileage/mtn hill climbs). I knew to use Amsoil in my rebuilds. I went with 75w-110 since I do not tow and highway drive mostly. The new rear differential is set at tighter clutch preload than stock. And No Need for Any additive.

Put this is my 71 VW Bug transaxle and it works amazing. Smooth shifting!

Another Great product, Did the Front and Rear Diff's. Truck Glides down the highway !

Amsoil products are great and the gear lube is great too! Been using Amsoil oil, filters, fuel additives and gear lube for years.

Heard nothing but great things about this gear lube. Did my fluid change and zero problems or issues!