Lucas Oil Stabilizer in differentials??

[961kyle]

Lucas oil stabilizer claims you can use 50-100% in them. Would anyone or has anyone ever gone 100% lucas oil stabilizer in a differential? If not would that be as good as 80w-90 like gm recommends?

 

[Molson02536]

Lucas oil stabilizer claims you can use 50-100% in them. Would anyone or has anyone ever gone 100% lucas oil stabilizer in a differential? If not would that be as good as 80w-90 like gm recommends?

I use 50% Lucas in my differential mixed with the rear differential fluid and seams to be running great, been running it that way since the first rear differential service and the Jimmy is at 365,000 miles now with the original rear end. ALL TEMPS......80W-90 with Lucas 50/50 mix on my Jimmy.