How Much Fuel Is Wasted by Running the Air Conditioner for One Hour Without Turning Off the Engine?

[StReed]

Fuel consumption when idling with the air conditioner on: Under normal circumstances, if a car consumes 10L of fuel, turning on the air conditioner will increase fuel consumption by approximately 2L. The impact of fuel consumption and whether the air conditioner is on is significant, and the effect varies with different fan speeds. Precautions for idling with the air conditioner on: 1. Fuel consumption is relatively high when idling with the air conditioner on, generally reaching around 2L/h. Therefore, idling for extended periods with the air conditioner on will consume a considerable amount of fuel. If the car's fuel level is insufficient, it may run until the engine shuts off. 2. When idling, incomplete fuel combustion produces a large amount of carbon monoxide. The longer the idling time, the higher the concentration of carbon monoxide around the vehicle. Prolonged idling can lead to extremely high carbon monoxide concentrations inside the car, which can cause carbon monoxide poisoning or death if someone is inside, resulting in safety hazards. 3. Incomplete fuel combustion during idling can lead to engine carbon buildup. Severe carbon buildup can affect the car's normal startup, reduce engine power, increase fuel consumption, and cause excessive exhaust emissions. 4. Prolonged idling emits a large amount of exhaust, exceeding PM2.5 standards, polluting the air and causing significant environmental damage.