Harvey and I just talked about this and he mentioned to be very careful with any alkaline or acidic product on newly anodized wheels as the finish hasn't 'aged' yet. He said soap and water, as others have talked about, but wash the soap off completely because of the high pH. He also mentioned passing the information along to anyone mounting tires on newly anodized wheels to get the mounting soap off quickly so it won't stain the finish. As the finish 'ages' it becomes much less porous.