When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
Try the 3M all purpose cleaner. You can get it at any automotive paint suppy store. Here where I live there is a special store that only sells automotive paint supplies to body shops. Get some cotton terry pads and cover the can opening with the pad and tip it over to get some of the cleaner on the pad. Then apply the pad to the spot. I have used this with success on my front rims.