How long does it take for the engine coolant temperature to reach 90°C in winter?

[DiRyder]

In winter, it generally takes about 20 minutes for the coolant temperature to reach 90°C. Here are some relevant details: 1. Precautions: The normal operating temperature for most vehicles ranges between 80°C and 90°C. If the temperature is too low or too high, the engine will not function properly and its performance will be compromised. Additionally, the heat generated by the engine during operation cannot be adequately dissipated by conventional air cooling alone, which is why most manufacturers adopt a water-cooling design. 2. Role of antifreeze: The primary function of antifreeze is to cool the engine. Therefore, it's essential to fully utilize its heat-absorption capacity. If the design temperature is set too low, it wastes the cooling potential of the antifreeze and increases the burden on the cooling fan. Conversely, if the temperature is set too high, it requires antifreeze with a higher boiling point, which increases vehicle operating costs. Thus, 90°C is considered a relatively optimal temperature.