How much more fuel does using air conditioning in summer consume?

[ArabellaMarie]

Using air conditioning in summer can account for about 20% of the car engine's power consumption. This means if a car consumes 10 liters of fuel per 100 kilometers, using the air conditioning would increase fuel consumption by approximately 2 liters. The lower the temperature setting, the more fuel it consumes. Below are some related details: 1. Air conditioning operation: The air conditioning compressor requires energy to cool, and since the car's air conditioning compressor is directly driven by the engine, it consumes part of the engine's power, thus increasing fuel consumption. 2. Fixed fuel consumption: For cars with fixed displacement compressors, there's no need to deliberately adjust the temperature or fan speed because the fuel consumption is almost fixed once the air conditioning is turned on, regardless of the temperature setting or fan speed.