Does idling the car with the air conditioning on consume more fuel?

[GraceDella]

Idling with the air conditioning on consumes more fuel. Principle of idling with the air conditioning on: The power output consumed by the air conditioning only accounts for a small part of the engine's idling energy. However, when idling with the air conditioning on, the engine not only drives the air conditioning compressor but also needs to maintain the normal operation of the power steering and brake booster pumps. The latter two functions are completely unnecessary when the car is parked, and keeping them running is a waste of power, which leads to significant fuel consumption. Health hazards: Running the air conditioning while the car is parked is very dangerous. When the vehicle is idling or moving at low speeds, gasoline cannot be fully burned, producing carbon monoxide. If the air conditioning is in the external circulation mode, it will draw carbon monoxide into the car, potentially causing carbon monoxide poisoning for the occupants. This is especially risky during traffic jams when the air conditioning's intake is directly facing the exhaust of the vehicle in front. Therefore, it is best to switch to the internal circulation mode during traffic jams.