Spray an even amount over the entire wheel surface. Let the solution remain on the wheel for 2-4 minutes to allow the cleaning agent to work. You will notice a color change and purple liquid start to run down your wheel. This is completely normal. Caution, if left on longer than the recommended time, the solution may damage the wheel surface. Rinse off the wheel with a high pressure hose. Use a good quality, clean microfiber towel, soft brush or wash mitt to remove any residual dirt left behind. Rinse and repeat as needed.