Xtreme Tire and Wheel Cleaner penetrates, loosens and removes brake dust, road film, dirt, and grease from wheels and rims. Tire and Wheel Cleaner can be used through a CTA (chemical tire applicator) or a manual spray wand as a presoak step and can also be used as an engine degreaser in self-service bays. Recommended for use in conveyor, in-bay automatic or self-service wash systems; great for friction or touch-free.