What is the general idle speed of an engine?

[LeviMarie]

Engine idle speed is generally around 850 RPM. Below is relevant information: 1. A car's idle refers to an operating condition. When the engine runs without load, it's called idling, meaning the car is in neutral gear. The engine speed during idling is called idle speed. Idle speed can be adjusted by modifying throttle opening size and other methods. 2. When the engine is running, if the accelerator pedal is completely released, the engine enters idle state. During idle adjustment, the RPM should not suddenly increase or decrease, as this may cause premature engine wear. It's best to have adjustments made at an automotive repair facility. 3. When starting the engine while the vehicle is parked, the minimum stable operating speed is called parking idle (the process of the engine transitioning from cold idle state to normal operating temperature idle state is called warm-up or heating).