How many years can the original car coolant last?
2 Answers
The original car coolant can last at least 6 years. Coolant that exceeds its shelf life will deteriorate, produce impurities, and some of its internal chemical components may become ineffective, which can affect the cooling system or engine to a certain extent and should not be used. Coolant replacement method: Before completely replacing the coolant, conduct a thorough inspection to check for any signs of leakage or cracks in the pipes. Drain the old coolant, then flush the liquid channels with clean water. After draining for about 1 hour, add the new coolant through the radiator's water pipe.
After driving for so many years, I've learned that antifreeze shouldn't be strictly judged by the calendar. The factory fill usually lasts three to five years, but it really depends on your car's condition. Vehicles that frequently overheat in summer traffic jams burn through coolant faster. In northern regions where winter temps drop below -20°C, you'll need to test the freeze point every two years if it degrades quickly. My routine is popping the hood before winter to check levels – top up with the same color if low, but if it's yellowed or cloudy, prepare for a flush. Last year, my neighbor's car went five years without a change – clogged radiator led to engine seizure, costing over 6,000 yuan in repairs.
