3M Wheel & Tyre Cleaner comes pre-diluted to the correct strength for safe use on all wheel types, and should thus be used neat. For best results, we recommend that it is sprayed on liberally and then agitated thoroughly using suitable brushes and/or a microfibre wash mitt (ideal choices include the Microfiber Madness Incredibrush, Braun Automotive Wheel Woolies and the Microfiber Madness Incrediflair). This will produce a rich foaming lather, which will quickly discolour as brake dust and road grime is progressively released. Accordingly, it is sensible to rinse out your brushes and/or wash mitt regularly during this process, otherwise there is risk of marring or even scratching your rims. The lather should then be rinsed away thoroughly and the wheels then dried fully before any rim protection or tyre dressing is applied.