The full name of antifreeze should be called antifreeze coolant, which means a coolant with antifreeze function. Antifreeze prevents the coolant from freezing and cracking the radiator and freezing the engine cylinder block or cover during cold winter parking. Many people think that antifreeze is only used in winter, but we have to correct this misunderstanding, in fact, antifreeze is not only used in winter, it should be used all year round.