When to Replace Antifreeze?
2 Answers
Antifreeze should be replaced every 2 years or 60,000 kilometers. The full name of antifreeze is antifreeze coolant, which is a type of coolant containing special additives. It is mainly used in liquid-cooled engine cooling systems to prevent the coolant from freezing and cracking the radiator or damaging the engine cylinder block or head when the vehicle is parked in cold winter. Antifreeze contains: calcium chloride, methanol, ethanol, ethylene glycol, and glycerin. The method to replace antifreeze is: 1. Open the hood after the engine has cooled down; 2. Open the antifreeze reservoir cap; 3. Lift the vehicle and open the radiator drain plug, drain the old antifreeze, then reinstall the drain plug; 4. Lower the vehicle and pour new antifreeze into the antifreeze reservoir.
As a veteran driver with over 20 years of experience, I believe the timing of coolant replacement is quite particular. Generally, it should be changed every two years or 30,000 kilometers, a standard that applies to most vehicle models. If you drive to extremely cold areas in winter, such as Northeast China where temperatures drop to dozens of degrees below zero, it's best to replace it a bit earlier to prevent serious issues like engine freeze cracks. I always check the color and level of the coolant during oil changes. If it appears dark or rusty, I address it promptly. I learned my lesson the hard way when I once forgot to change it, resulting in the engine nearly overheating and costing over a thousand yuan in repairs. In fact, using a long-life coolant can last up to five years, and the price isn't expensive. Regular maintenance is key. Remember, coolant doesn't just prevent freezing; it also resists corrosion and protects the entire cooling system. Paying attention to these details will significantly extend your car's lifespan.
