Lucas Oil10123 Synthetic SAE 75W-140 Gear Oil - 5 Gallon

expensive but worth it to give my differential better traction

Put in my 10.5 Sterling! I used a 1 gallon hand pump to fill! It did make the ring and pinion quieter! Good stuff

I’ve been buying Lucas products for years and believe it makes my vehicles work better. I put this fluid in my rear end and so far it’s working great. Time will definitely tell the true story!

Nice stuff, get a bottle pump to put in rear diff

Used this in the differentials of my 99 Grand Cherokee. I do not have Vari-Lok (a form of LSD used on this model) so I can't comment on the friction modification of this fluid.I previously had some 90w dino oil in both diffs, as that is what I had available to me at the time (In a 5 gallon pail with a pump). Let me tell you, after switching both diffs to the Lucas, the difference in ease of movement on those cold winter mornings is staggering. Used to feel like the Jeep was straining to move when I would first start to drive, now it just seems to glide compared to before. Yes I know the difference in weight and synthetic vs dino oil caused this, just thought it was worth mentioning.Overall I've been pleased with the Lucas oil, and when it comes time to change the fluid again, I will probably purchase the Lucas.I will say though, buy a pump that you could use to transfer the fluid from the jug to the diffs. I ended up using a washed out Coke bottle into a funnel into a tube that ran down to my diffs through the wheel well so gravity would actually pull the fluid through the tube... Messy business that was.EDIT: So I once again purchased this fluid. This time around I DO have Vari-Lok axles. (I swapped the open diffs for the Vari-Lok'ed ones). I did have to add the factory recommended (2.5oz in front, 4oz in rear) friction modifier (from the dealer) as the Lucas did not prevent the axle's limited slip from groaning on turns. Regardless of this fact, I am still very happy with the fluid and will once again buy it again.

Reasonably priced for the viscosity. Difficult if not impossible to find gallon jugs in any store. Nice that it has the friction modifier in it already as most Lucas products do. I run this or 75/90 in my Jeep TJ and 3rd gen Tacoma without issues.

I used this to change me rear differential fluid in my 2014 Nissan Frontier PRO4x.I was not expecting to notice any difference, after all , it's just a fluid change. Though very minor, I did notice it seams to be just a little bit quieter going down the road. The one gallon jug was difficult at best, to gent into a position to refill the differential, but not impossible.

Good oil.