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Re: ZF6 Fluids

Subject: Re: ZF6 Fluids
by CentralCoaster on 2009/12/15 17:23:51

I dug this up one of my posts at CF. No p/n's and not sure if it's relabeled as anything else, but looks like you can at least get the alternatives at the dealer.

Quote:

Pennzoil Synchromesh, tall yellow bottle, some Autozones have it.

All sources I've found says it is the same fluid as GM Synchromesh, which is the current GM lube superceding original GM fluid recommended for ZF.

Or you can go to the GM dealer and get GM Synchromesh. They offer 3 types:
GM Synchromesh (correct lube per GM)
GM Synchromech FM (friction modified, not sure what effect this'd have)
GM Synchromesh Synthetic ($$, not sure if it's a direct replacement for the regular Synchromesh or not.)

Some of these may also have a Chrysler p/n.

I heard the Pennzoil product was being discontinued and will be replaced with QuakerState (same company).

Thin oil will definitely add hp. When my 4+3 was leaking gear oil, I'd know when to refill it because I'd start picking up ET (and noise) at the dragstrip I was at every other weekend. Unlike motor oil, the transmission is swimming in fluid.

D44