Black streaks on camper
I need some help with a good cleaner. I have a 2016 aspen trail and it has black Streaks running down the aluminum siding. I've tried all kinds of stuff to get it off with no luck. I can get off with rubbing compound and lots of elbow grease but I don't want to do a 30 ft camper like that. I thiink its mostly soot from camp fires when I had it at hunting camp for a few months. I hoping there a better cleaner that I can use. I've tried goo gone ,goof off,purple degreaser,awesome, bar tenders friend,,several car washes. It's like it's stained into paint. But I can rub it out.
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