How Often Should Radiator Coolant Be Replaced?

[OCecilia]

Radiator coolant generally needs to be replaced every 2 years or 40,000 kilometers. Below are specific details about antifreeze (radiator coolant): Definition: The full name of antifreeze should be antifreeze coolant, meaning it is a coolant with antifreeze properties. Function: Engine antifreeze has characteristics such as preventing freezing, preventing overheating, preventing corrosion, preventing scale buildup, and being foam-free, unaffected by seasons or regions. Antifreeze prevents the coolant from freezing and expanding in cold winter conditions, which could crack the radiator or damage the engine cylinder block or head. Quality Standards: The primary measure of antifreeze quality is its freezing point. Water freezes at 0°C, while standard antifreeze can typically reach -40°C. High-quality antifreeze should achieve around -60°C, an important indicator of antifreeze quality. Another factor is the boiling point of the antifreeze. Water boils at 100°C, whereas antifreeze should reach at least 108°C or higher. In other words, the lower the freezing point and the higher the boiling point, the greater the temperature range, indicating better antifreeze quality.