However today, you do not should do that! The idling you do on today's automobile burns precious energy and also leaves energy residue on the cyndrical tube wall surfaces that stay with it because the cylinders aren't moving as fast as they typically do. This pollutes the engine oil with carbon deposit and makes your vehicle's innards dirty.
If you truly require the automobile to maintain keeping up the AC on in summer seasons, maintain offering revs to the car to make sure that the engine runs more and also oil circulates inside the engine. Since India is an extremely humid country, Air Conditioning is constantly on, yet try using it less often because it puts tension on the vehicle components and you wish to extend the life of your auto don't you?