A car that runs too hot runs bad(duh). I know this cause I havve experienced it. But on the other hand, I've heard that if it runs too cold, it won't perform as well either. What is the perfect temperature for a car to be running at and how can i keep it there? 160 or 180 thermostat? I also wanted to get the fluidyne radiator but it's a little pricey so how would the summit ones work? thanx