Idling the auto places pressure on the contemporary gas injection systems in today's cars. Idling was used in cool or heats when gas injection wasn't widespread in older cars. To keep the engine from delaying, people used to maintain it running or it might not switch on.
If you actually require the car to keep running with the AC on in summers, maintain providing revs to the vehicle so that the engine runs far better and also oil circulates inside the engine. Because India is a very humid nation, Air Conditioner is always on, but attempt using it less commonly because it places tension on the vehicle components and also you desire to extend the life of your automobile don't you?