Black magic Bleach is easy to use on all types of tires White walls White lettered and black wall tires. You need to spray the solution on cool dry tires and allow it to set for two minutes so that it can brake dust grease and road grime. Then hose off with cool water and wipe away any residue that remains with a towel. Be sure to brush and reapply the product if heavy deposits or scuffs are present.