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International Automotive Technicians Network
Re: Transmission Fluid
Posted to Transmission Forum on 1/14/2020

No real advantage in using +4 in this; plain ol' Dex greatly exceeds the standards of the original fluid. I don't know if there might be material compatibility issues (seals, bonding agents & resins in the frictions, etc) with the +4; I DO remember some issues... Login to read more.