Customer Ratings & Reviews

Ive been running this in both axles for 112,000 miles. I dont have issues with kicking it in 4WD in extreme cold (no 4WD button/knob in this rig). The rear locking Eaton differential works reliably with zero noise. I tow consistently and I tap shift 97% of the time I drive to avoid using my service brakes which puts extreme stress on my drivetrain (bought truck new, truck has 125K hard miles, original factory installed rotors & pads are still on it and only the pads have worn by 2mm max). I drain & fill the diffs every 45K and I only get metal dust at the plugs, no flakes. So, I would say its working well.

Great

I've used these products for well over 25 years and recommend them to my friends. Nothing but Amsoil, from bumper to bumper in my vehicles.

Love it. Ashley Carte was great help.

I use it in all my dmax trucks

I put this in my 2001 legacy gt and shifting felt awesome. Well I got a 2013 WRX and of course changing all fluids to Ams-oil and shifting since switching to it has been buttery smooth. I couldn't be happier.

I do not use any other gear lubricant in my vehicle. I trust Amsoil Severe Gear to keep my vehicles running top notch, no matter what I put them through.

I use this gear oil In my jeep and in my tow vehicle works great

I use Severe Gear lubricant in my 2016 Harley Street Glide's gearbox. It immediately shifted smoother and it's easier to find neutral. Plus it quiets the first gear clunk to some extent.

I have used this in my side by side, truck and absolutely notice an improvement in the smoothness and lower noise levels with this gear lube. Highly recommended.

Amsoil is really good using it for years

I purchased a 2007 HD Ultra Classic in Nov. 2006. It was the first year of the 96 cu. in. Engine and 6 speed transmission. In the first 600 miles I was bothered by hard shifting, and a noisy 6th gear. I found out Harley had used their 20W-50 oil in the trans. At 600 miles I replaced the transmission oil with Amsoil Sever Gear 75W-90. Problem solved. My bike now has 60K miles and the trans shifts beautifully with no noise.

Use in the rear end of my 40' diesel pusher. The test prove it is the BEST.

Ive been using amsoil for years in my bikes. As soon as I buy a new bike amsoil goes in it. Holds up to heat and the beating I put it through. Also quiets the trans and can find neutral a lot more easier. The only downside is its clear. Makes it difficult to see on dipstick.

I have a dodge ram 6.7 cummins 2500 4X4 Truck that pulls a 14k Fifth wheel. I noticed my rear end was chattering when turning on long trips. Acted just like it needed slip additive. All the info I could find said no additive. Dodge dealer wanted to do diff work...NOT 80k miles and no noise.. I decided to go up on wt. to 110 sever gear. All GOOD! Perfect! I tell everyone I meet to trash the mopar fluid if your working your truck.

I have found that all of the Severe Gear Full Synthetic Gear Lube to be the highest quality! I wouldn't use anything else.

Replaced the gear oil in my 07 f150 with amsoil and couldn't be happier. Pretty sure I even get a mpg or 2 better gas millage as well. Transmission also tends to downshift less going up hills. Next up I will be switching out the trans oil with amsoil as well.

I use this product and I highly recommend it.

I have used many different synthetics over the years. I Choose AMSOIL based of independent testing and from personal experience of seeing how well it works.

I have this in 2 different vehicles. Its grate stuff.