The Mr. Clean Eraser easily removes the residue. No chemicals required, just water. I detailed a Ford Explorer yesterday and the owner was SHOCKED with the results. The interior grained plastic door panels were filthy with grease embedded into them. The eraser completely restored them. The rear bumper has a black plastic cap that was covered with wax residue. Again the eraser cleaned it perfectly. Wish I cold find my camera, Kids were playing with it and you know, kind of lost it.