Best differential oil?
munson
05-29-2004, 11:29 AM
I am replacing the front differential oil seal on 99 Jimmy.
Which oil should I use?
Regular gear oil, the one for limited slip or syntec?
Which oil should I use?
Regular gear oil, the one for limited slip or syntec?
GMCTech
05-29-2004, 12:34 PM
Just plain ol' 80W-90 will be fine.
You can switch to a synthetic, but I don't feel that the added cost validates the benefits. I think the synthetic (if you choose) is a 75W90 SHC.
Hope this helps.
You can switch to a synthetic, but I don't feel that the added cost validates the benefits. I think the synthetic (if you choose) is a 75W90 SHC.
Hope this helps.
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