What does 1000r/min refer to?

[VioletRose]

1000r/min is a unit of engine speed. Below are specific details about engine speed: 1. 800/min~1200/min: During cold starts, the idle speed of the ignition engine should be below 800/min or above 1200/min; otherwise, it indicates poor engine condition. 2. Below 2000r/min: While driving, try to minimize engine operation below 2000r/min. If the speed is too low, the engine will lack power, and the excessive load at low speeds can damage the engine and easily lead to carbon buildup.