Stopped by the local Dollar Tree store looking to pick up some microfiber towels (all out) and happen to see this wheel cleaner on the shelf. Tried it out on my neighbors steel wheels that have never been cleaned since it was new (1984 and the wheels had the typical dark brown look to them) and the results were fantastic without any scrubbing. Silver wheels now and shiny too. This is just spraying the product directly on the wheel and waiting a minute and spraying them again, then rinsing with water. The majority of the brake dust is gone. The product has a citrus smell to it and the label states "safe for all wheel types". But since there are no ingredients are listed on the label, it is unknown if the product is highly acidic or not. Will probably just use it on steel wheels only until there is more information available. Mfg by Awesome Products located in Buena Park, Calif. Will continue the experiment tomorrow when there is more daylight. Appears to have cleaned out the brake dust, dirt, and grime from the seams. Not bad for a $1 product.