There can be multiple ways to clean the alloy wheels and there are numerous best alloy wheel cleaners available on the market. Each one of them holds its distinctive characteristics and effectiveness and you can choose one keeping the material of your car and your needs in mind. After applying the wheel cleaner, spray brush it or scrub with a sponge to remove all the traces of dirt. While washing it off with some foam cannons or snow foam lances. Will help to blast off all that stubborn dirt and grime and will give your car a shiny appearance.