Ok and why do you think you still see temps in the range of 180-195* in the city with a 160* thermostat and only see actual 160* temps when you're on the highway?
Answer that.
Better yet i'll inform you, The reason is because the fans along with the slow moving air from driving 40 mph can't cool it down fast enough becuase the water in the radiator is not there long enough to cool it to the tempeture of wich the thermostat opens at.
You can argue all you want. But i'm going to stop.
All I want to do is help this person with the problem that he is having unlike you who is simply trying to prove a fact wrong.
