AARRGGHHH. I need your help on this .. you see the back of the machine above. how do I cut through that greasy dirty yuk that is on the back. I thought I would just soak it with oil and then wipe it off using some elbow grease. I have used lots of elbow grease and oil and it does not want to come off. My friend suggested a Mr Clean Magic Eraser, it worked. Am I damaging the finish using the magic eraser? I see no scratching marks and there is only dirt and grease on the eraser. No green paint. I think this was used in a shop that the people using it had oily/greasy hands. suggestions???