haybaler04-28-2007, 10:57 AMya, the do it yourself auto stores would not sell rotors you have to turn down. they do have a light coat of oil, almost like cooking oil. just use break cleaner, get the earth friendly less toxic stuff and do not be afraid to use the whole can on there. there is no such thing as using to much, it dries itself. just try not to get it on rubber brake lines or any seals, it