How many bars on the temperature gauge are normal?

[McKhloe]

It is normal for the temperature gauge to show 2 to 4 bars. When the car's engine is operating normally, the water temperature is typically between 90 degrees Celsius and 105 degrees Celsius, which is the midpoint on a simplified gauge. If the car's water temperature becomes too high, it can lead to poor engine cooling. The expansion of components will reduce the clearance between parts, and on the other hand, high temperatures will lower the viscosity of engine oil, increasing wear on components. To ensure the engine operates within the normal temperature range, cars are equipped with an engine coolant temperature sensor. Usually, the temperature gauge is displayed separately on the car's dashboard, and an alarm will appear if the antifreeze temperature is too high.