Couldn't tell ya, I just know it's recommended.on my window actually... not to much on the car a lil tho. duragloss wsr can be found at shucks? or autozone?
ok you didint specify tint! but yeah make sure you dont get it on paint it will lift it right off. and to the person who said to ignore me STFU ! im teaching this guy on some realy good stuff! hopefully vinager works!lol right along with my tint ...lol if it was only on the outside