Customer Ratings & Reviews

Does as advertised and really liked the bottle design with it being easier to fill the differential than a traditional hard bottle. Differential feels good and smooth so only time will tell how well the oil holds up.

Does as advertised and really liked the bottle design with it being easier to fill the differential than a traditional hard bottle. Differential feels good and smooth so only time will tell how well the oil holds up.

All of the products I have used from Amsoil are awesome and work as they should and are of the highest quality!! I have noticed much better performance in my 2017 Silverado 1500 4x4 and my fuel economy has gone up 3mpg after using Amsoil products!!

I have a 1995 F-350 4x4 crew cab, it only has 51,000 original miles, I’m putting this all around, I sometimes pull my gooseneck with my OBS. So I definitely wanna keep my rear end cool because I’ll be pulling very heavy.

I have been rock crawling for at least 10 years now. Broke numerous axles but haven’t had a differential failure which I credit it to using Amsoil products. Great stuff.

product is ok and has done the job but this web sites is not the most cost effective place to buy. It is fortunate that I had bonus money on site to keep it competitive.

Installed the severe gear oil in my wife’s Tacoma, she thought I did something drastic to it. By drastic ; I mean that she thought it free wheels better I.e less drag. She checked mileage and it was 5.5 mpg better. What more could you ask for. Thank you for a superior product

When I was at the Lone Star rally I visited the AMSOIL tent and talked to the reps about fluids. I got this for 2009 Harley Davidson Softail Deluxe. I had just resigned the fact that neutral would always be impossible to hit and it would always be a loud and stiff transition from one gear to the other. I did the fluid change and replaced what I had with Severe Gear 75W-140 and the difference is amazing! So much quieter and smoother!

Ran this in my 2007 GMC 2500 and now in my 2018 Chev 3500. So far everything is great. Changed my 2007 every 100K miles and same plan for the 2018. Never an issue with my 2007.

The oil change was super easy with these squeezable pouches! I didn't have to fumble with any transfer pumps or anything of the sort, just open and pour. Just a tip, if your rear end requires the Ford friction modifier, open and pour into a pouch and shake it up a bit.

I am a Master Toyota Certified Technician. I own a 2020 Toyota Tacoma, after installing the severe gear in the front and rear differential’s , I immediately noticed a difference in the way the truck rolled down the road. Effortlessly and smooth. I have co-workers that have the same trucks; needless to say they were blown away. They are going to service their differential’s with severe gear. Awesome product. I personally wouldn’t use anything but severe gear in any of my trucks.

Put 75-90 in gearbox and final drive in my 2020 Ural Gear Up. Also full synthetic 20-50 motorcycle oil in the engine. The few miles I've been able to ride, I've noticed smoother shifting and the engine seems to love it. Got it ready for bike week in Daytona. I'm Amsoil ready!

Best in the business

High quality gear oil, very well packaged and fast delivery.

This form of packaging is easier to use than a plastic bottle with a pump absolutely more efficient

I watched a ton of you tube videos on amsoil so I'm thinking I don't have a tree in my front yard that I can shake off thousands of a branch so I'm like let me try this stuff out so as of last week I changed out both oil and transmission fluid I spent about 180 but I'm still thinking that's a lot cheaper then a motor and a transmission things were smith before but it just like I gave my car a breath of fresh air it's not like me to go against what the dealership recommends for the car at hand but the way I see is they half to put something in there and so that was who they chose to contract with as far as fluids are concerned but I feel that amsoil is going to do my car a lot better then what the manufacturer recommends because after all they want you to need a car after so long at which I can't afford and as it's looking not to far down the line will all be in electric vehicle's

Bought this to change out rear differential fluid in my camaro ss and even though it has the anti slip in it I also used 4 oz of amsoil slip lock to be on safe side and what a difference!!! I wouldn't use or recommend anything else since trying amsoil! It smoothed out the ride, made it more responsive and definitely hooks and goes.

I changed the gears in. Y truck and used a regular gear oil. After 7,000 miles I changed the oil added the chatter supplement and man quieter and smoother in turns without the slightest jerking or anything. Great products keep up the good work Amsoil

Recently changed all my oil needs to Amsoil. Appears to be great stuff. Especially impressed with their fast shipping. Arrived in just a day or two. All four of my vehicles will now be Amsoil vehicles.

I have a 2020 Dodge Challenger and getting to the fill port of the diff would have been a nightmare with a plastic bottle. I would had to pump it in. Not with the Amsoil Easy Pack. Also seems like the diff is quieter than before.