Is an Engine Temperature of 100 Degrees Celsius Normal?

[DelMalachi]

An engine temperature consistently at 100 degrees Celsius is abnormal. The normal operating temperature should be between 80-90 degrees Celsius. Typically, specialized engine coolant can withstand temperatures up to around 110 degrees Celsius. A temperature of 100 degrees Celsius does not indicate boiling, unless pure water is being used. Here are the recommended actions: If the temperature exceeds 100 degrees Celsius, it indicates a cooling system issue, and the vehicle should be inspected immediately. This also highlights that the recorded temperature is for the antifreeze, not the 'water temperature,' as water would boil at 100 degrees Celsius, whereas antifreeze does not have this issue. If the temperature consistently reaches 100 degrees Celsius, consider using a higher concentration of coolant, checking for blockages in the pipes, and inspecting the thermostat and dashboard sensor.