The temperature measures how hot or cold something is. In vehicles, the temperature is often used to refer to the temperature of the engine or other components. The engine temperature is typically measured by a thermostat, a device that senses the temperature and controls the coolant flow through the engine to maintain a consistent temperature. The ideal operating temperature for a car’s engine is around 195-220 degrees Fahrenheit. If the engine temperature gets too high, it can cause damage to the engine and may even lead to engine failure. If the engine temperature gets too low, it may malfunction or fail to start.