Where is the antifreeze generally added?

[McLiam]

Antifreeze is generally added to the car's radiator, also known as the cooling radiator, which is a key component of the vehicle's cooling system. The radiator's function is to dissipate heat. The coolant absorbs heat in the water jacket, flows to the radiator to release the heat, and then returns to the water jacket to circulate, achieving temperature regulation. It is an integral part of the car engine. The full name of antifreeze is antifreeze coolant, meaning it is a coolant with antifreeze properties. Antifreeze prevents the coolant from freezing and expanding in cold winter conditions, which could otherwise crack the radiator or damage the engine block or cylinder head. Many car owners believe that antifreeze is only used in winter, but in fact, antifreeze should be used throughout the year.