How often should the vehicle's antifreeze be replaced?
2 Answers
Vehicle antifreeze should be replaced every 20,000 kilometers or approximately every 2 years. Antifreeze, fully known as antifreeze coolant, is a coolant with antifreeze properties that prevents the coolant from freezing during cold winter parking, which could otherwise cause the radiator to crack or damage the engine cylinder block. Precautions for using antifreeze: 1. Regularly check the antifreeze level and replenish it promptly if it falls below the minimum mark; 2. Observe whether the antifreeze has any turbid sediment, and replace it immediately if turbidity is present; 3. Different vehicle models use antifreeze of different colors, so they should not be mixed; 4. Before winter, measure the freezing point of the antifreeze to prevent it from freezing.
The coolant replacement interval is typically based on the vehicle manufacturer's recommendations, usually every two years or every 30,000 to 50,000 kilometers, but this is not set in stone—always refer to your owner's manual, as different models may vary. If left unchanged for too long, the coolant degrades, losing its anti-corrosion and antifreeze properties, which can easily lead to engine overheating, especially in extreme weather. I often see car owners neglect this, only to regret it later when the cooling system corrodes and requires costly repairs. Regularly check the coolant color; if it changes from green or pink to a murky brown, that’s a clear signal it’s time for a replacement. To save money and hassle, stick to the schedule—don’t wait until problems arise.
