One of the regular village bragarts over on the slantsix board was bashing the use of Type F fluid in Mopar transmissions. He claims it degrades the bands and clutches because in the petroleum based form, it can't handle the heat as well as Dexron 2.

While there is some truth to the temperature rating of petrolium Type F as compared to petrolium Dexron, the thermal problem goes away when you switch to synthetic Type F.

In the synthetic form, the Type F can handle much higher thermal loads while still providing enhanced thermal stability and lubricity than petrolium transmision fluids, regadless of the type of fluid ie Dextron or Type F.

If you are going to use Type F, pay a bit more and run the synthetic Type F.