For those not in the know, engine coolant's primary function is to prevent your engine from overheating. If the coolant is too hot, your engine is far more vulnerable to a catastrophic failure.

One of the most essential is coolant. Coolant is that green, yellow, pink, or purple fluid that goes inside the radiator and flows throughout the engine. While the terms coolant and antifreeze are ...

Most vehicles now employ an expansion tank that allows the coolant to expand, and exit, the cooling circuit when hot, and to return when the car is turned off and the engine cools. The cooling ...