[SpeedracerIndy]

From the research that I did, that it the prefered car cover for inside. I have the same material in my car cover. Is it that the cover is deteriorating and leaving its remnants on the car? I hope not, because I have had mine for about a year and so far it's ok. I don't know about washing it, but is there a tag on it with washing instructions? If not, I would think contacting DuPont, who makes the fabric, or the maker of the cover would be able to give you washing instructions. I will check my cover when I get home for a washing instruction tag.

Edit: If the residue is just a dust, have you tried a car duster. (AS SEEN ON TV, California Duster!!!). I still use a duster and wipe off the car after I pull the car cover off of it. The Dustop fabrick does a good job, but it's not perfect. With at black car, you see every spec of dirt too.