What is the appropriate idle speed for a sedan?

[LeMelanie]

For a sedan, the normal idle speed is generally appropriate between 700-900 RPM. Below are the specific details about car idle speed: 1. Definition: When the engine runs without any load, it is referred to as idle speed. During engine operation, if the accelerator pedal is fully released, the engine enters the idle state. The rotational speed of the engine at idle is called the idle speed. 2. Function: Idle speed serves to overcome the engine's own operational resistance, maintaining the minimum rotational speed to facilitate the driver's convenience in various driving scenarios and temporary stops. For example, at traffic lights or in congested traffic areas, even for short durations, temporarily turning off the engine can achieve immediate energy-saving and emission-reduction effects.