Does a car consume more fuel when idling with the AC on?

[DiGriffin]

Car idling with the AC on consumes more fuel. Here are the specific disadvantages of idling with the AC on: Very fuel-consuming: Idling with the AC on after parking consumes a lot of fuel because the compressor relies on the engine idling to operate, which leads to incomplete fuel combustion and easy formation of carbon deposits. Produces toxic substances: Incompletely burned fuel produces toxic substances such as carbon monoxide. With the car doors and windows tightly closed for a long time, exhaust gases can enter the enclosed cabin and accumulate to a level that can cause carbon monoxide poisoning. Idling with the AC on emits more harmful exhaust gases than driving with the AC on, with relatively higher emissions of carbon monoxide, hydrocarbons, nitrogen oxides, and other harmful gases in idle conditions.