Can Antifreeze Still Be Used After 6 Years?

[StJayla]

Antifreeze that has been stored for 6 years is not recommended for use. The shelf life of unopened antifreeze is typically 2-3 years from the date of manufacture. Antifreeze Replacement Cycle: Vehicle antifreeze generally needs to be replaced every 2 years or 40,000 kilometers. This is just a reference cycle. For commercial vehicles with higher mileage, the replacement cycle should be shorter. Since driving conditions vary for each vehicle, the replacement should be based on actual usage. Regularly check the antifreeze level and replenish it promptly if it is insufficient. If suspended particles, sediment, or signs of deterioration or discoloration are observed in the antifreeze, it should be replaced immediately, and the system should be cleaned. How to Choose Antifreeze: The key indicators for antifreeze are its freezing point and boiling point. Antifreeze available on the market comes in various specifications with freezing points such as -15°C, -25°C, -30°C, and -40°C. It is generally advisable to choose an antifreeze with a freezing point at least 10°C lower than the lowest temperature in your region.