My dodge truck is running hot up around 220 when driving in town, over the Mt. Pass etc.
I've replaced the thermostat with a 190 and it still is running hot, my truck is a 2001 with
215000 miles, it's been bullet proof! I had the original Thermostat replaced at a garage
about 205000 miles because the OEM stuck open and the truck would not run up to
operating temp. He also flushed and filled it with new coolant.