[BeasleyRB]

Is it correct that a 190 degree thermostat might allow an engine to run cooler than a 180 degree? The reason given was the 190 keeps the water in the radiator longer and more heat is carried out of the water while in the radiator than being sent back through the engine. In the summer heat my engine runs about 200 so obviously the thermostat is open all the time. In the winter or fall it runs closer to 190 if you don't sit at stop lights too much.

I have a 351W and the stock 4 core radiator B&B sells (not aluminum) and a 180 thermostat. I don't have any severe heating problems but the car would not like being in a parade if you know what I mean.

Thanks, Bob