The thermostat regulates the engine's coolant temperature. Without it, the engine will take much longer to reach its optimal operating temperature, leading to:
* Increased wear and tear: Running too cold prevents the engine from reaching its efficient operating temperature, leading to increased friction and wear on engine components.
* Poor fuel economy: A cold engine burns fuel less efficiently.
* Incomplete combustion: Cold temperatures can lead to incomplete combustion, resulting in increased emissions and potential damage to the catalytic converter.
* Possible damage to the engine: In some cases, prolonged operation at extremely low temperatures can cause significant damage to the engine.
While some older vehicles might seem to run without noticeable immediate problems, the long-term consequences are detrimental. In short, while you *might* be able to run the engine for a short while, it's extremely unwise and risks damage.
