Customer Ratings & Reviews

Works Great.

Even though the Amsoil Severe Gear Gear Oil comes with a little Limited Slip additive. I wanted to make sure my rear diff in my 2013 Tacoma doesn't have the chatter. This Slip lock works well in my Tacoma.

Amsoil has been always #1 in my book. Love the easy squeeze packing.

I have tried two different suppliers for friction modifiers on my stock Jeep. The only product that works is the factory additive from Jeep Chrysler. Even then it’s only good for about 40K miles. This is a very short wheelbase vehicle that gets a lot of on off and windy roads. I have owned it for 22 years and 265K miles.

I must if you have a Chrysler rear end with a limited slip unit from the factory, keep things quiet and working correctly

Good product great idea

Just added when changing differential oil. Was impressed that Amsoil oil finder suggested using as required by manufacturers.

Years ago I bought a 1991 Nissan Pathfinder 4x4 and changed the rear differential fluid. I had metal noise chatter. Found out I needed a slip lock fluid Added Amsoil and within 1 day of driving around town a couple of times, problem fixed. I change the rear differential fluid every 50k miles and always add the Amsoil Slip Lock.

Works great with rear diff

Added a Banks diff cover. Upgraded to Amsoil 75-90 and the slip lock.

Used this on my 2014 Jeep Grand Cherokee SRT with 50k miles along with Amsoil 75W-90 severe gear oil in the rear differential. After an over 1k mile road trip, my truck is nice and smooth. Thanks Amsoil for your superior products!!! Customer for life

I add this to my CTSV, along with severe gear 75w90. Helps keep the whining down

Added this with Amsoil severe gear 75-90 oil no slip silent and smooth . Thanks again Amsoil .

My '92 Alfa Romeo Spider had the typical grind with 1st to 2nd upshifts, all upshift needed to be slow, and all downshifts were nearly impossible without a terrible grinding. I knew the lube specifications for the Alfa transmission are important and expected the last transmission service was not done with the right gear lube. I added a 4 oz tube of slip lock to the tranny and now the synchros work like a charm. No grind on any upshift and even quick downshifts are smooth, thanks to Slip Lock.

No issues since I have been using it.

Used this in rear differential change along with the severe gear 75-90 and its amazing at much difference its made swapping to amsoil! Will never again use any other brand in my ss camaro.

With GM’s limited split setup. Nothing is better than this product for the smoothest operation All I can say is use it and see for yourself

Good product showed up quick easy to use

Great product, used with Sever Gear 75w90 to quiet rear dif gear whine on a Charger Scat Pack.

Works well in the dif, added to amsoil severe 75-80. The car just glides