This was something I did a couple of years ago on Halloween night when I had part time job at Dominos Pizza. We were not allowed to dress up but my boss said I could do anything to my truck that I wanted.
The paint on my truck was very oxidized but it came off ok. I would test it out on a spot. I put on Halloween afternoon and wash it off the next day with out to much work. I did have to use a carwash brush on a few spots. I got some good tips that night and tons of looks.