[Oclk Dlux]

Thanks for the reply. A friend of mine who does plenty of transmission work agrees with you that transmission usually rises to the same temperature as the engine as both are connected together. As long as the transmission matches engine temperature, there's no problem. Yesterday I rodded the car plenty on the way home just to see what the temperature climbs to. It went no higher than the engine's temp (190F) and when I let off, both the trans & engine temps drop together to 165F. Very interesting!

I bought the TranSynd because it's compatible with Dexron III. I'm used to the slow temp rise of Dexron III and I guess I freaked out watching the trans temp rise faster than expected with TranSynd. But maybe that's a good thing. I read that TranSynd has the same friction dynamic coefficient as ATF+3, but it's "dual viscosity", meaning it retains the same viscosity at hot & cold temperatures. The new ATF+4 from Mopar and Valvoline is the same. I know of two tricks used to bring the trans temp up quickly to reduce wear. One is to use a radiator trans cooler and the other is a cooler bypass valve in the valve body (Dodge Neon A413s have this feature). Maybe TranSynd & ATF+4 resolved this problem with their dual viscosity properties so neither the radiator cooler or cooler bypass are needed? If so, then that will make things a lot easier :^)

I'll leave the TranSynd in and watch what happens. Wish me luck!