The air-conditioning system in a car works by manipulating refrigerant between a liquid and a gaseous state. As the refrigerant changes states, it absorbs heat and humidity from the vehicle and allows the system to give off cool, dry air.
Does car aircon use fuel?
American testing shows aircon can account for approximately five per cent of a car’s annual fuel bill, but Delphi says modern energy-efficient systems can halve the running costs.
Should I leave my car aircon on all the time?
You should run your car’s AC for ten minutes in every couple of weeks. Even if you do not want your car to be any cooler, the experts advise that you should turn it on every now and then in the winter. Running the AC allows the coolant to move around the system.
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