Blue Magic paste. This stuff is incredible. I did some white-oxidized Demon carbs with it and now they look like mirrors. Use a micro-fiber or terry cloth (more agressive) towel. You can buy it very economically at Amazon. It even removes overspray from painted surfaces! I didn't mask very well, and tried the ol' clay bar. It wasn't removing it very quickly so i tried the Blue Magic. The overspray melted right off and into the terry cloth towel! Just a couple swipes and no pressure. Try it.