Customer Ratings & Reviews

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!

I just did my rear-end Differential a month ago - removed the cover and used 3 cans of CRC PRO GRADE BRAKE CLEANER (RED CAN) to get it nice & clean - and remove residual contaminated oil. I used this for the First Time ever and all I can say is that it like pouring a new rear end into your vehicle. Nice quiet smooth ride & dramatically has slowed leak from the input shaft. I highly recommend it especially for 4x4 / heavy duty / & heavy haul (truck & bus) protection... Next up will be the front differential same product. No friction modifier needed OR added, everything you need is all in this product... Excellent Engineering 👍

I changed my old, dirty diff fluid from my Vette to this new, clean fluid. Hopefully it protects my diff and performs as good as the trans fluid I replaced the same day. I didn’t feel a difference as much as I did on my M7 transmission, as I was able to feel how it shifted effortlessly compared to prior to the fluid change. I believe this is a great product so far.

These are great for rear differential where you have room. A lot faster then pumping it in.

Same great gear oil, in a no (less) mess package under the car.

If you’ve read my other reviews you know I’m prejudiced toward Amsoil products, based on their performance. This time I’m taken aback at just how good this product is. I purchased a 1969 Mach 1 428SCJ with at least 45,000 miles and after checking its gear oil I think 145,000 miles might me closer as it was black as tar and the Traction Lok clutches slipped so badly it behaved like an open rear. I wondered if someone had swapped one in. I drained and refilled with this gear oil. A year later I repeated the process and this year I was going to do so again. However, the oil still looked clean AND the Traction Lok started working. I don’t know the formulation but I know I’m amazed!

Easy to use pouches and great quality product

First time using amsoil and I am very happy appears to be great quality and I swear it solved a very light tap noise I use to have when shaking the truck side to side Will start using amsoil for all of my fluids now

To line high-quality easy to use squeeze container my only choice for gear oil, and all my high-performance. Has Tree removable equipment andOff-Road Recovery vehicles. Customer for life.

I just aquired a 2004 Yukon XL with low mileage and minimal rust. One of the 1st things I did was change the front and rear differentials. Amsoil is the best so that is what I replaced it with. I have used it in the past and it never let me down.