Its time to do a tranny flush in my caravan before i blow it. My Dodge dealer tells me the tranny fluid is called +4? I have read that if I use GM dextron3 or ford Mercon it will cause problems. Is the +4 a synthitic fluid? I work at a LInc/ Merc dealer and on top of the MErcon we also have a Mercon V that is a synthitic. Is that comperable. also my local carquest has a Mopar + 4 tranny fluid but i dont want to use that. Does anyone know if the Mercon V is compatible to the +4? Pleasse help!!

 

I don't see Mercon V approved for Chrysler.

 

no mercon5 is not compatible. Atf+4 is the fluid that you want. Chrysler trannies are very picky about the fluid.

 

Thanks for the advice i was afraid of that.