New to this site, this is a question for my 86 GTI 8v, a new car to me that I am getting in shape for the street while I shop around for a built ITC or B car to go racing. Anyway, the car has sat for awhile and when I run it a white vapor comes thru the heat/AC vents into the interior, no distinct smell, anti-freeze or freon. Any thoughts???? much appreciated.