How much fuel does a car consume when idling with AC on for one hour?

[DiLeilani]

When a car idles with the AC on for one hour, it consumes approximately 1-1.5 liters of fuel. Below are the hazards associated with idling with the AC on: Carbon buildup: Idling with the AC on can cause some damage to the car and wear to the engine, potentially requiring more frequent maintenance. If the engine speed is too low to power the AC, incomplete combustion can occur, leading to carbon buildup. Overheating: Idling with the AC on while parked can result in poor heat dissipation, which may cause the engine to overheat. An overheated engine is highly susceptible to damage. Increased carbon monoxide concentration: When the car's engine is running, incomplete combustion of fuel in the cylinders can produce high concentrations of carbon monoxide. While driving, air circulation through the AC system helps maintain low carbon monoxide levels inside the car.