Is it okay to rev up to 4000 RPM for overtaking in a new car?

[LilaRose]

For a new car within 5000 kilometers, using 4000 RPM for overtaking will definitely harm the vehicle and affect engine break-in. Even for cars with tens of thousands of kilometers, prolonged high-RPM driving should be avoided as it increases fuel consumption. Occasionally revving up to 4000 RPM or higher for a short distance can be beneficial for the engine. Not only does it not increase wear, but it also helps remove carbon deposits and reduce engine carbon buildup, a process known as "running-in at high speed." During high-speed driving, when speeds are typically maintained between 80~100 or even 100~120 km/h, the engine operates in an optimal state. This allows for complete combustion of gasoline, minimizing engine damage and ensuring the engine runs in its best condition. Besides gasoline, other components like lubricants also achieve their optimal operating state.