Originally Posted By: ram_man
My fiancé has the automatic ddct transmission in her 13 dart. It's due for the fluid to be changed. What fluid besides Chrysler fluid can I used? Is there anything available? I can't believe it lived long enough to need its first change to be honest. I hate ddct!
does yours have the manual? they're the same unit,the C635, The DDC version just has a Borg Warner Hydraulic Activation Module added on.
Fiat and Alfa both use this same trans.
you just have to drive it like a you would a manual, sans the 3rd pedal. don't idle/creep or you will overheat the trans.
(if your GT is an Auto, its the 6F24 powertech made by Hyundai)
my limited research shows this(from Dodge-Dart.org):
"Basically, the Mopar C635 transmission fluid is a 75W API GL4 gear oil, so in theory any 75W API GL4 fluid should work as a direct replacement. Amsoil does not appear to sell 75W oil, but Royal Purple has a 75W API GL4 oil called Synchromax if you're looking for something aftermarket."
http://www.dodge-dart.org/forum/dodge-dart-transmission/27849-15-c635-trans-fluid.html