In your car, antifreeze/Coolants works to prevent your engine from freezing up or overheating in extreme climates. As the outside temperature rises and falls, coolant is circulated throughout the engine block to maintain optimal internal operating temperature.
Coolants conduct heat from the engine to the radiator and heater core while protecting from boil-over, freeze-up and corrosion.In addition to the engine, proper coolant levels protect against corrosion and help lubricate your water pump.