When Should the Antifreeze Be Replaced?
2 Answers
For the replacement of antifreeze, we can follow the suggestions below: 1. Regularly check the antifreeze level; if it is below the lower limit, replenish it promptly. 2. Before winter each year, measure the freezing point of the antifreeze to ensure it is 15°C to 20°C lower than the local minimum temperature. 3. Replace the antifreeze according to the replacement cycle specified in the vehicle manual, which is generally two years, though some may indicate 4-5 years or longer—follow the owner's manual. 4. Some antifreeze does not have a clearly specified replacement cycle; in such cases, we can determine whether replacement is needed by observing the antifreeze's condition, such as turbidity, sediment, or an excessively low freezing point. 5. Different vehicle models may use antifreeze of different colors, so mixing them is not allowed.
I remember changing the coolant is quite crucial. Generally, it should be considered every two years or after driving 30,000 to 50,000 kilometers. I used to neglect this, and ended up spending a fortune fixing my car's cooling system. Now I've learned my lesson and strictly follow the vehicle manual. The manual clearly states that expired coolant can corrode pipes or the radiator, especially in northern winter low temperatures or southern high-temperature regions where it deteriorates more easily. Every time I change the coolant, I opt for high-quality long-life types that last longer but never exceed the expiration date. Before driving, I always take a quick glance at the coolant color – clear indicates normal, but if it appears cloudy or faded, immediate action is needed. Don't underestimate it; without proper cooling, the engine may overheat and stall. Safety first! I've now developed the habit of regular coolant changes—it saves money and gives peace of mind.
