Question: My question is about radiator overflow tanks. I’ve always had cars and trucks that had an overflow tank that you would keep full to the cold or hot mark. Checking over my daughter’s car, she ...

Meh, your 4x4’s cooling system is simple…as simple as fluid dynamics, thermodynamics, heat transfer, material properties, specific heat, ideal gas laws, and a few more aspects of physics can be.

As engines get very hot, coolant helps distribute heat to help prevent overheating and engine damage. It also adds antifreeze protection and acts as a lubricant for some of the engine’s components. If ...