Does Idling Burn Fuel?

[DelCorey]

Running the air conditioning while the car is idling consumes fuel. Keeping the engine idling with the AC on not only consumes a significant amount of fuel but may also damage the vehicle. Higher fuel consumption during idling: The fuel consumption when running the air conditioning while idling is relatively high, typically around 2L/h. Therefore, leaving the engine running with the AC on for extended periods can burn a substantial amount of fuel. If the car is low on fuel, it may continue to burn until the engine stalls. Engine carbon buildup during idling: Insufficient fuel combustion during idling can lead to carbon buildup in the engine. Severe carbon buildup can affect the car's normal startup, reduce engine power, increase fuel consumption, and cause issues such as excessive exhaust emissions.