Originally Posted By: 01rangerxl
I ran it for about 80K-85K miles in my truck's diff, but I used the 75W90 variety.
No complaints. It only got changed because the pinion seal was getting replaced too. Draining the diff is not required for that job, but it seemed like a good time to go ahead and do it.
The only reason I did not use it again was that I could not justify the price in a not very picky application. Used Valvoline SynPower 70W90 this time for almost half the price.
Thanks...
We get it for free from a supplier, so I thought I would use it...