Hey guys so upon driving the new 04 gtp comp g yesterday (148k) I noticed my trans fluid a bit higher than the normal operating temp listed in owners manual...about 220 when I was just ending my short drive of 40 miles or so, it was hot out about 88/90 degrees so I know that doesn't help me...but is this normal trans temps for this outside Temperature or am I having issues? Just did a coolant flush with new 180tstat...but I did some reading about this issue on here and seeing some mixed feelings...some say it's not too high to be worried about taking into account where I live and the outside temps, and some are saying it is high and I should install and auxiliary trans cooler?
Then I went down the rabbit hole of fluid to use, some saying dex3 is the only way to go and others saying because it's discontinued I should use dex4? So what do you all do in this situation?
