RPM

What is RPM?
RPM means revs per minute, the cycle of rotation in the engines.

RPM also stand or showing the value of a cars power, it also show the amount of power that you produce when you press the accelerator of the car.

Some drivers depends on RPM gauge and some doesn't use this RPM gauge for some professional they can predict analyzed how powerful your car is depending in the sound of the engine and muffler or the sound characteristic and so fort. They even know what the right timing on changing gears while running slow or fast. For automatic cars it is common to have an constant rpm to change gears it always at 3000 RPM/min for manual it depends on your timing desire power to produce.