How Often Should Coolant Be Replaced in a New Car?

[SanChase]

New cars generally require coolant replacement every two years or 40,000 kilometers. The reasons for rapid coolant consumption and its functions are as follows: Reasons for rapid coolant consumption: Radiator damage, poor sealing of the upper and lower water chambers causing coolant leakage; loose connections and poor sealing at the reservoir, water pump interface, and various coolant system pipe joints leading to coolant leakage; cylinder head gasket damage, excessive flatness deviation or warping of the cylinder head and block mating surfaces, and loose cylinder head fastening bolts allowing high-temperature, high-pressure gases to enter the cooling system, resulting in rapid coolant consumption. Functions of coolant: Raises the "boiling point" of the engine coolant (the temperature at which cooling water boils), lowers the "freezing point" of the cooling water, typically has a service life of 1-2 years, and specialized test strips are available to measure coolant concentration.