How Often Should the Antifreeze in a Family Car Be Replaced?
2 Answers
Family car antifreeze should be replaced every 2 years or 60,000 kilometers. Antifreeze, also known as coolant, is designed to allow the car to continue operating in low winter temperatures. Engine coolant contains substances that lower the freezing point of water, preventing the cooling system from freezing in cold weather. The functions of car antifreeze are: 1. Providing freeze protection for the engine against low-temperature environments; 2. Preventing the coolant from freezing and cracking the radiator or damaging the engine cylinder block and cylinder head when parked in cold winter conditions; 3. Offering efficient heat dissipation. The components of antifreeze include: calcium chloride among inorganic substances, and methanol, ethanol, ethylene glycol, glycerol, lubricating oil, and purified water among organic substances.
The general recommendation for antifreeze replacement is every two years or 30,000 kilometers, but always refer to your vehicle's manual for specifics. Having driven a family car for over a decade, I've found regular changes crucial as it prevents engine overheating, freezing, and corrosion. Prolonged neglect can cause fluid degradation, leading to clogged cooling systems and even damage to the water pump or cylinder head - repairs that don't come cheap. During each maintenance session, I have technicians check fluid levels and color; if it appears cloudy or has sediment, early replacement is necessary. Summer demands extra vigilance as high temperatures lower the antifreeze's boiling point, increasing the risk of overheating. Always use OEM or compatible products, and avoid mixing different types to maintain effectiveness. Remember, prioritizing road safety means not skimping on this essential maintenance.
