I have owned my 2014 Rubicon unlimited since new. It currently has 52000 miles.
I ave been unhappy with the temperature my Jeep climbs to when towing or climbing long grades. Would regularly reach over 230 degrees. When towing the gauge would quickly creep to the edge of the normal line.
I tried changing the fan settings using a tuner but was never able to change the settings successfully. I tried an aftermarket aluminum radiator, colder Thermostat and even a pusher fan to get my Jeep...
Fan Controller