I recently installed a 180 degree thermostat a few days ago in my 2013 6.4l, everything seems to be working and the engine is running at a cooler temp. I also have a trinity tuner and have lowered the fan settings as suggested (https://www.highhorseperformance.com/HHP_180_Degree_Thermostat_10183_p/10183-usps.htm). The issue I'm possibly having now is that even though my fan setting are lower, they still seem to be running constantly and possibly even harder at low speeds (parking lots, city driving, ect.). Just concerned because I don't want my fan to die out prematurely and the running noise of the fan is kind of annoying, especially in a parking garage. Don't know if this is a normal thing or if I need to make more adjustments. Has anyone else had this issue or know or anyways I can get around it, or is this just completely normal and something I just need to get use to.