What does the needle on the RPM gauge mean?
What does the needle on the RPM gauge mean? The RPM gauge indicates the revolutions that the engine makes in one minute. It is measured in multiples of 1,000. Hence, if the needle of the RPM gauge is on 4, it means the engine is turning at 4,000 RPM. How to monitor your rpm gauge to get the best performance? A car tachometer, or RPM gauge, shows the speed the engine is spinning. Watch your RPM gauge to improve your car's performance and fuel efficiency. When you start your car, the crankshaft inside the engine begins to turn. The engine’s...