Double-Duty® Extreme Tire & Wheel CleanerThe competition was tough. The car wash owners are even tougher. The car wash owners are the ones who have made us manufactures tougher on ourselves to create even better chemicals for you. In fact, the latest formula was tweaked nine times in eight months, until we reached the perfect cleaning action that you told us you wanted. Bingo, discover the fastest acting and highest foaming, liquid detergent formulated exclusively for wheel and tire cleaning