What is the normal idle speed value for a car?

[Elrond]

The normal idle speed value for a car is between 700 and 800 RPM. Different car models have different engines, so the idle speed value varies accordingly. If the idle speed is too low, the engine may shake easily, while an excessively high idle speed increases fuel consumption. During idling, the engine speed is low, the intake air speed is slow, the intake swirl to the cylinders is weak, and the mixture atomization is poor, leading to incomplete combustion and increased carbon deposits. The car engine is the device that provides power to the vehicle, determining its performance, fuel efficiency, stability, and environmental friendliness. The maintenance methods for a car engine include: 1. Regularly changing the engine oil and oil filter; 2. Keeping the crankcase well-ventilated; 3. Regularly cleaning the crankcase; 4. Periodically cleaning the fuel system; 5. Regularly maintaining the radiator.