Oh yes I hear the fan! You are right there is no missing that thing.
I found a place online that said the operating temp of the 6.7 Cummins was increased for emissions reasons a few years ago and the new thermostat does not fully open until 200 degrees. Oh and it is over 100 here today so that probably does not help either. Maybe my temps are normal. Seems strange that the gauge is so far to the right of center though.
Im going to blow the radiator our really good and see if there is any change.