
Vehicle antifreeze generally needs to be replaced every 2 years or 40,000 kilometers. This is just a reference interval. 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. Check the antifreeze level regularly, and top it up promptly if it's 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. Types of Antifreeze: Antifreeze is generally categorized into three types: ethanol-water, glycerol-water, and ethylene glycol-water. How to Choose Antifreeze: The key indicators for antifreeze are its freezing point and boiling point. Available antifreeze products on the market come with freezing points of -15°C, -25°C, -30°C, -40°C, etc. It is advisable to choose an antifreeze with a freezing point at least 10°C lower than the lowest temperature in your region. Functions of Antifreeze: Antifreeze is non-corrosive and is a coolant containing special additives, primarily used in liquid-cooled engine cooling systems. It offers excellent performance in preventing freezing in winter, boiling in summer, and protecting against scale and corrosion throughout the year.

I usually drive quite carefully, so it's important to time the coolant refill correctly. Generally, check it when the engine is cold. If the level is below the MIN mark, it's time to top it up—don't wait for the warning light to come on. This is especially crucial before seasonal changes: prevent freezing before winter and overheating before summer. It's best to use the same brand and color of coolant to avoid mixing different types and causing issues. For reliability, replace the coolant every two years or 30,000 kilometers to prevent corrosion in the cooling system. Engine health depends on the details, so be extra careful to avoid breakdowns on the road.

After years of driving, I've learned that antifreeze maintenance is all about prevention. Top it up when the coolant level is low, with priority checks during seasonal transitions. Ensure sufficient antifreeze capacity before winter, and replenish it during summer's high overheating risks. Make it a habit to check the scale when the engine is cold—never cut corners. A complete replacement every two years as part of routine maintenance can extend engine life. Experience tells me that proactive care saves repair costs down the road.

Back when I was a novice, my mentor taught me to check the coolant level when the engine is cold, and top it up with antifreeze if it's low. Pay special attention during seasonal changes—prevent freezing in winter and boiling in summer. Always use the manufacturer-recommended product, avoid randomly adding water or mixing brands to prevent issues. The method is simple and practical.

For family users, driving safety comes first, and adding coolant should be done properly. It's best to add when the fluid level is below standard, during regular maintenance, or replacement periods. Preferably operate when the engine is cold to avoid burns from a hot engine. Replace the coolant every two years to enhance corrosion resistance and protect the cooling system. Regular inspections prevent problems, making trips with passengers more reassuring.


