What is the difference between car antifreeze and water?
1 Answers
The difference between antifreeze and water lies in the fact that car antifreeze has a higher boiling point and a lower freezing point than water. Antifreeze can reach a boiling point of 106°C and a freezing point below -45°C, providing better cooling performance and superior freeze protection compared to water. Additionally, antifreeze contains various special additives that offer anti-corrosion, anti-scaling, and anti-rust properties. How to choose antifreeze: The basic indicators of antifreeze are its freezing and boiling points. Market-available antifreeze comes in several specifications with freezing points of -15°C, -25°C, -30°C, and -40°C. Generally, it is advisable to choose an antifreeze with a freezing point at least 10°C lower than the lowest temperature in your region. Antifreeze replacement cycle: For vehicles that operate for extended periods, such as taxis, high-quality antifreeze should typically be replaced once a year. For vehicles with shorter operating times, replacement can be done every two years or every 30,000 kilometers. To prevent excessive foaming, which reduces the heat exchange efficiency between the antifreeze and engine components, ensure the product is within its validity period when adding it. Long-life antifreeze can remain effective for up to three years. If suspended particles, sediment, or signs of deterioration or discoloration are observed in the antifreeze, it should be replaced promptly, and the system should be cleaned.
