Why is it important to maintain proper engine coolant levels?

Maintaining proper engine coolant levels is crucial because it directly affects the engine's ability to operate at the correct temperature. Engine coolant plays a vital role in regulating temperature by absorbing heat from the engine and dispersing it through the radiator. If the coolant level is too low, the engine may overheat, which can lead to severe damage such as warped heads, blown gaskets, or even complete engine failure. Furthermore, running at an optimal temperature also ensures that emissions are controlled and that the engine runs efficiently, both in terms of performance and longevity. Thus, ensuring the engine operates within its designed temperature range is essential for proper functionality and to prevent costly repairs.