How Many Liters of Fuel Does a Car Consume When Running the Air Conditioner for One Hour?
2 Answers
It consumes approximately 2-3 liters of fuel per hour. Since the engine remains idling, the fuel consumption is not very high. Here is some relevant information: Reason for fuel consumption: The power source of the car's air conditioning system comes from the engine. The engine drives the air conditioning system compressor via a belt, and the power for the air conditioning system fans also comes from the car. Therefore, running the air conditioner will definitely increase fuel consumption. A noticeable reaction is that when the air conditioner is turned on at idle, you can clearly feel the engine speed decrease because the compressor adds an extra load. Inspection: However, if fuel consumption is unusually high, it is recommended to check the fuel system. If there is no noticeable lack of power when accelerating, the issue is likely due to fuel leakage in either the high-pressure or low-pressure system. Alternatively, it could be a problem with the fuel from the gas station or the fuel gauge.
Having driven for nearly twenty years, I've noticed that using the air conditioning in summer does significantly increase fuel consumption. The AC compressor is driven by the engine, which requires extra fuel to provide that power. Specifically, how much fuel does it consume per hour? For smaller-displacement sedans, it's roughly 1 to 1.8 liters. For example, my 1.5L car consumes about 1.2 liters of fuel per hour with the AC on while idling in the city. Larger-displacement SUVs might need over 2 liters. The lower the temperature setting and the higher the fan speed, the more the fuel consumption spikes. Once, I rested at a highway service area with the AC on for half an hour, and the fuel gauge dropped much faster than usual. So now, if I'm parked for more than ten minutes, I make it a habit to turn off the engine—it saves fuel and reduces carbon buildup. When the weather isn't too hot, opening the windows for ventilation is also a good option.
