The GM recommendation for my AWD Rear Drive Module (RDM) is VersaTrak fluid (P/N 12378514). This is not AutoTrak II fluid. The closest thing to an alternative is RP Synchromax, but I have found mixed reviews as to how well Synchromax works in these RDMs. Even Amsoil does not make a public recommendation for an alternative. (I have seen some online Amsoil rep recommendations, but I cannot verify them as original.)
Does anyone know what makes VersaTrak so darn special. If I knew more about VersaTrak fluid, I might be able to logically consider an alternative. I can't even find an MSDS for the stuff. Does anyone here know what sort of additive strategy is used in this fluid.
Does anyone know what makes VersaTrak so darn special. If I knew more about VersaTrak fluid, I might be able to logically consider an alternative. I can't even find an MSDS for the stuff. Does anyone here know what sort of additive strategy is used in this fluid.