Why does the inside of my car windscreen keep misting over when the engine is turned off?
Because the outside temperature is colder than inside the car condensation forms on the inside of the windscreen. To prevent it happening you can try a ‘rain-off’ treatment on the inside of the windows or rubbing them with a pure soap to put a fine coating on the windows. The quickest way to defog your windows is by using the car’s airconditioning to blow up onto the windscreen even if you turn the heater thermostat to the warm position. The airconditioner reduces the moisture in the air.
