Kind of surprised of people talking about the trans overheating in the low 170-180 degree range. I'm still catching up on my Dodge...sorry, Ram...facts. In all my previous years of automotive experience I never got concerned until the trans got up into the 200 degree mark and stayed there for any extended period of time, and would expect the normal operating temp to be in the 170-180 range. Generally expect the trans to run close to the engine temperature since it was pretty common for the trans cooler to be built into the engine radiator, and then maybe an small auxiliary trans cooler on top of that. Guess I need to see how mine is setup (2016 that I bought 7 months ago). I know on my last Chevy which was an '03 2500HD the trans would would run in the 190 degree range when towing consistently, and that truck had 150k miles on it and still shifted great when I got rid of it.