Does idling the engine for half an hour harm the car?

[LuciaRose]

Idling the car for half an hour can cause certain damage to the vehicle. The main harm is that prolonged or frequent idling can lead to carbon buildup inside the engine cylinders and affect the throttle. When carbon deposits accumulate to a certain extent, they can reduce the car's power performance and, over time, easily cause engine wear. Problems that can occur with engine idling: Inefficient vaporization of gasoline: The normal operating temperature of an engine is approximately between 90 to 110 degrees Celsius. Before reaching the operating temperature, the fuel system is too cold to effectively vaporize gasoline completely, making it harder to ignite and start the engine. Gear oil flows to the lower part of the transmission: Regarding the lubrication of transmission gears, this is something most people don't understand and often overlook. Similar to engine oil, gear oil in the transmission flows to the lower part when the car is cold. Difficulty shifting when the car is cold: Only when the car is moving does the operation of the gears bring the gear oil from the bottom to lubricate the upper part. This is why most cars experience difficulty shifting when cold.