Control the speed of the engine

The tachometer reading tells the driver whether he is driving economically and whether he can safely overtake a slower vehicle.

Car engines operate in a very wide range of speeds - from idling to maximum speed. The spread between the minimum and maximum revolutions is often 5-6 thousand. In this regard, there are various areas that should be relatively easy for the driver to identify.

There is a range of economical speeds at which fuel consumption is lowest, there are speeds at which the engine produces the most power, and finally, there is a limit that cannot be exceeded. The driver, who consciously drives the vehicle, must know these values ​​and actively use them, for example, to optimize fuel consumption.

The tachometer reading tells the driver what range the engine is running in, whether we are driving economically and whether we can safely overtake a slower vehicle.