How do I go about removing this stain off the side of my motor? Working on cleaning it up to get ready to sell and that looks like utter trash. No. It does not leak! It did and it has now been fixed with a new seal and gasket behind the powervalve cover. I dont have a dremel with a buffing wheel or anything to “really” take the stain off for real. So what else would work? Have not tried anything yet but wanting ideas before I go spending money on cleaners, etc. Anything around the house work? Like simple green and a wire bruh maybe? Thanks!