What is the normal engine speed for an automatic transmission car?

[AmirDella]

For a new automatic transmission car during the initial break-in period, it is advisable not to exceed 2,200 rpm. During the mid break-in period, the engine speed should not exceed 3,000 rpm, and it is also recommended not to exceed 3,000 rpm in the later break-in period. Here is some relevant information about engine speed: 1. Cold start: When starting the engine cold, the idle speed should not be below 800 rpm or above 1,200 rpm. If it is outside this range, it indicates poor engine performance. 2. While driving: Try to avoid letting the engine operate below 2,000 rpm while driving. If the speed is too low, the engine may feel underpowered, and the excessive load at low speeds can damage the engine and lead to carbon buildup.