When Should Car Antifreeze Be Replaced?

[CoraFitz]

Car antifreeze should be replaced approximately every 2 years or 40,000 kilometers. The specific replacement interval should be determined based on the vehicle's usage condition. The full name of car antifreeze is antifreeze coolant, and its functions are: 1. To provide freeze protection for the engine against low-temperature environments; 2. To prevent the coolant from freezing and cracking the radiator or damaging the engine cylinder block and cylinder head when the car is parked in cold winter conditions; 3. To provide efficient heat dissipation. The steps for replacing antifreeze are: 1. Unscrew the radiator cap to drain the old antifreeze; 2. With the engine idling, inject clean water until clear water flows out of the radiator; 3. After all the water has drained, close the drain valve; 4. Refill with new antifreeze until the liquid level is between the MAX and MIN marks; 5. Replace the cap and let the engine idle for two to three minutes.