How much fuel does a 1.5L car consume when idling with AC on?

[Kira]

The energy consumption of air conditioning doesn't have fixed data standards. Turning on the AC will increase energy consumption by about 20%. A 1.5L displacement car consumes approximately 2.0 liters of fuel per hour when idling. With a 20% increase, this would be around 2.4 liters per hour. Of course, this value may vary depending on the vehicle's condition. If the vehicle's compressor is old, it will create greater resistance, naturally leading to slightly higher fuel consumption. Hazards of running AC while parked: Hazard 1: Running AC while stationary increases exhaust hazards. When the vehicle is parked, there's no wind to disperse the exhaust, which may seep through door gaps into the cabin, potentially causing exhaust poisoning. Hazard 2: When the engine is idling, it operates with insufficient power. The additional compressor load increases engine resistance, causing component wear. Hazard 3: Idling with AC on increases carbon buildup in the combustion chamber, and prolonged use can accelerate cylinder wall wear.