Uhhhh... I have serious doubts about that. Try using some sort of paint cleanser or something that will get rid of oils and such. Let's see if the scratches are still there.
You guys are after just the oil right? If you want a little less mess, go to any organic grocery store and buy their peanut butter. The oil separates from the solids. Cost is about $1.00. On the other hand, most probably already have peanut butter at home.