JimmyY2KWS6

I've been using the GM stuff but I want to switch to synthetic. Is the Red Line 75W90 Synthetic Gear lube better than GM's?

Jimmy

z2802sunsetls1

yea id go with redline thats what i did

DeepBlueZ

i've heard some negative things about synthetic so i went with plain old 75-90 gear lube. make sure to use the Posi-additive....

Rockit_GTO

2000 and up you can use synthetic just not on 98 and 99. I use Mobil 1 75-90. Just do not forget the GM limited slip additive.

JimmyY2KWS6

I changed the fluids today with synthetic. I think they say not to use synthetic on Auburn Posi's. I am pretty sure my car has a Torsen. When I spin one wheel the other spins backward so I think it is ok to use synthetic. I did use the additive as well. Thanks

Jimmy

1999Daytona500PaceCar

iTrader: (2)

I have a Torsen in my '99 3Oth TA - so I planned to go with Mobil 1 as well - that should be OK shouldn't it? Thanks...

Gary Z

A lubricant additive is necessary for clutch type posi units such as the Auburn. No additive is needed for the Torsen.