Originally Posted By: lars11
ok Donald, the Bennett manual says "any ATF". Now Dex3 is an ATF, right?
Yes, DEX III is an ATF, although officially GM withdrew licensing for the DeEX III spec so no one can claim they are DEX III anymore, but many still do. The current GM spec is for DEX VI.
I would use any DEX III or above ATF except maybe some real cheap stuff from the dollar store. The trim tab application is no where as tough as the transmission application.