Most normal people drive modern cars with computer controlled everything, and they seldom over heat. If you folks are like me (and I know you are because I’m an Eastwood guy too) you likely drive a special car that is more than a few years old and may have a carburetor, purely mechanical forms of engine control (or manual, driver controlled) systems, and a motor butting out a lot more power and heat than the factory ever provided. Some of the common advice for what to do in case of an overheating car works no matter what car you are driving, but older cars sometime require special care.