What is the appropriate engine RPM?

[DeCaden]

It is generally reasonable to keep the car engine RPM between 1800 and 2000. However, different road conditions require different RPM levels. The engine RPM affects the number of work cycles per unit time or the effective power output of the engine, meaning the engine's effective power varies with RPM. Therefore, when specifying the engine's effective power, the corresponding RPM must also be indicated. RPM under different conditions: Idle state: During a cold start, the car idle speed is usually around 1200~1500 RPM. When the engine reaches normal operating temperature, the idle speed typically stabilizes at 800~900 RPM. If driving in D gear without pressing the accelerator, the speed is approximately 5-10 km/h. City driving: Shifting gears at around 2000 RPM is normal. When accelerating or overtaking: Shifting gears at around 3000 RPM is normal. If more power is needed, up to 4000 RPM is acceptable. In sport mode (some models have an S gear), the RPM will increase by more than 500. This is due to the gear mechanism and cannot be manually adjusted. During the break-in period for new cars: Try not to exceed 3000 RPM.