[Jerry Cowing]

Keith,

My engine was also running hotter than I wanted when sitting still in traffic idling. It never over heated (eg. never exceeded 240), but 220 seemed too hot for a 160 thermostat. I flushed all the anti-freeze out and replaced it with water, a bottle of lubricant/antirust and a bottle of water wetter. It now never goes above 190 even when sitting in long lights in the 105 degree Florida heat and humidity. My car stays in an insulated, indirectly heated garage in the winter so I don't worry about it freezing. Water is a much better coolant than anti-freeze.