I was pleased with the way this product worked. I happened to have seen it on a YouTube video, in regard to cleaning up old aluminum slotted wheels. It was hard to locate a source for it, till I found it listed on the Autopia Auto Care web site. I recently picked up a set of aluminum slotted wheels that were pretty nasty with oxidation on the back sides. It took about 3-4 applications of the Flitz PreClean, along with scrubbing with a plastic brush, but I felt it did a pretty good job of removing the white oxidation. I still have a lot of polishing to do, but at least the oxidation is gone. I would recommend this product.