Customer Ratings & Reviews

Good

I've used this gear oil in my Harley transmission and in the rear end of my For pickup for years. It's great stuff. When in the Harley transmission the transmission will shift much better and run very quiet over what Harley recommended oil.

Love these bags, easy to fill the diff. This is my 2nd order. Only downside is I had one pack with a flaw on the seem that leaked all over my workbench while being stored.

Used the 75w-90 to fill GM a 12 bolt rear differential on a 69 Camaro and it makes the job so easy with the easy pack. Just insert the fill nozzle and squeeze, no funnel required. Rear Eaton posi unit is nice and quiet too with this lubricant.

The squeeze bag made it so easy. I hope to never use my hand pump again.

I had some slight noise coming from my pumpkin and after replacing my OEM oil with severe gear it was Gone!

Amsoil oils always seem to quiet and smoothen things out. Thumbs up on packaging and shipping too.

Changed rear diff oil in my truck, the oil is great, the bag works perfect for squeezing into the diff. And all the quantities for my vehicles is so convenient!!

Who ever came up with the easy pack should get a gold star, no more funnel or pump! Brilliant!

Swapped out the rear axle fluid on my 1993 Ford F150 XLT truck that has 130,000+ miles on the original fluid. It is now silky smooth and quiet. I would highly recommend this product.

Same as above love Amsoil

Amsoil products always come through as a superior product that produces and out performs

Easy pack is a game changer for DIY!! Same great fluid now even easier !

Wasn’t really sure about the gear oil in a bag until I tried it. Worked perfectly. Easy to squeeze out and got all the oil out.

Gear oil Amsoil …4wd saver

The transmission shifts smooth.

I replaced my rear diff 2011 Challenger with 2015+ diff added the 75w-90 plus the LSD additive its smooth and quiet

Only gear oil I use if it is the recommended weight for that vehicle. Great stuff.

Felt the difference and my old fluid wasn't even that old. Ford recommends 150k miles for rear diff. Fluid was dumped once at 30k for a diff cover replacement and replaced with OEM Motorcraft synthetic 75w90. I did it again 40k miles later and replaced with Severe Gear 75w90 and felt an immediate difference in smoothness and maybe 0.3 - 0.5 mpg improvement. I didn't expect do feel anything but was blown away that although it wasn't drastic, it was still noticeable.

I’ve got a 2008 GMC Duramax diesel dully and developed a problem in the differential. The locking mechanism started to hang up. I suspected that the clutch plate ramp cam was not releasing the way it should. My truck is very low mileage for an 2008 (33K) but has done some pretty heavy trailer hauling. I was afraid that it might blow when on dry pavement. I drained the old GM grape juice and poured in Amsoil sever gear lube (75-90) and I have not experienced any lockup for a couple months now. Fixed what could have been an expensive repair bill. Thanks AMSOIL!!!! Gary