Is it normal for white smoke to appear for a few seconds when starting the car?

[VanEllie]

It is normal for white smoke to appear during cold starts, especially when starting the engine in low temperatures, and for the smoke to disappear as the engine warms up. More details about white smoke from cars are as follows: 1. Insufficient temperature: Due to the engine not being warm enough, part of the air-fuel mixture formed by the fuel injected into the cylinder cannot burn, resulting in white smoke from the exhaust pipe. Therefore, after starting the engine, it is important to maintain the radiator's warmth and operate at medium throttle until the engine temperature reaches above 50°C before gradually increasing the load. 2. Water vapor: The white smoke is actually just water vapor adhering to the inner wall of the exhaust pipe muffler. Since the exhaust gas coming out of the pipe is at a high temperature, this high-temperature water vapor rapidly cools when expelled from the exhaust pipe, quickly condensing into visible tiny water droplets.