ProjectWS6

Try BG's 85-145, BG's is the BEST

1ScrudeDude

Digging up the ol' thread again...

Can anyone tell me the rationale of NOT using synthetic. I always thought synthetics would have better cooling capabilities.

BOWTIE

And can someone clarify exactly what the purpose of the additive and what it does. It is my understanding that all it is is a friction modifier designed to encourage the clutches to slip and therfore make the transition around corners and parking lots bind free (more like an open differential). If that is all it does, then I would not see a need for most of us on this board to use it. It obviously has nothing to do with lubrication qualities or GM would require it in all rear axles, not just those equipped with limited slip differentials.

peterock98

iTrader: (25)

http://www.xcellube.com/products/atf_gear/gl5.htm .This is what I used & I added two bottles of gm limited slip additive.
Synthetic is to slick for the carrier & it could cause the seals to leak this is what Strange told me .

DynoDR

iTrader: (1)

Only that my rear end bearing replacment jobs more than tripled when the oem started using syn. fluid. Some at very low mileage also. The only thing they all have in common is the synthetic fluid.

1ScrudeDude

Thanks.

Funny thing is, a shop I went to last week said the exact same thing you did.

Synthetics in rear---->

NaSSty99

i got 80 w 90 in my 8.8", i think i'll switch to 85-140

i don't have any limited slip additive right now, is it ok to drive the car a couple of miles before i put any additive in it?

1ScrudeDude

'Should be fine. Get some in asap though.