The temperature of the coolant is very important for the correct and efficient operation of the engine. Every engine has a certain ideal working temperature that it needs to reach for its optimal operation.

For proper engine operation, the ideal coolant temperature is between 80°C to 90°C (176 to 194 degrees Fahrenheit), depending on the type and construction of the engine.

A thermostat is a device that controls the flow of coolant liquid in the engine's cooling circuit. Every engine has a certain ideal working temperature that it needs to reach for its optimal operation.

If the engine does not work at its ideal working temperature - it is not optimally warmed up - it leads to higher fuel consumption, worse operation, higher noise, but also greater wear of all engine parts.