Does a Car Consume a Lot of Fuel When Idling After Ignition?

[VanSteven]

When a car is idling after ignition, the fuel consumption is not very high. However, if the air conditioning's cooling function is turned on, the fuel consumption can be relatively high during idle. Moreover, keeping the engine in an idle state for a long time can lead to increased carbon deposits inside the engine, which is harmful to the engine. Below are the hazards of prolonged engine idling: 1. When the engine is idling, gasoline does not burn completely, leading to increased carbon deposits inside the engine. Carbon deposits can cause significant harm to the engine and often accumulate in the intake tract, valves, throttle body, and combustion chamber. 2. If carbon deposits form in the combustion chamber, they can increase the compression ratio, leading to engine knocking. This can result in reduced engine power, increased fuel consumption, and potential damage to the engine.