I have used Mother's Mag & Aluminum Polish on some neglected junkyard American Racing alloys. Clear coat was garbage. Took
A LOT of elbow grease, but they turned out to almost mirror finish. They required a lot of regular cleanings though. I would just run them during summer also. One year, I left them mounted too close to winter, and caught some bad weather. I just took them off and stored them. When I took them out the next year, they were corroded again, and required another job with the Mother's