STEK Formula 12 Wheel Wheel Cleaner Post 7200216: Bozard_Chapapa Gameoverse Kit. STEK Formula Wheel is a powerful, pH balanced cleaner that restores any wheel to a clean, bright shine. Safe for all wheel types, this unique, viscous gel lifts all contaminants away from the surface, leaving behind a perfectly clean wheel. FORMULA 12 also includes a highly effective iron remover that neutralizes contaminant buildup deep within the wheel and wheel well. Spray on and watch the product turn a reddish purple color as it works! Features: Fast acting wheel cleaner Built in iron remover pH balanced Thick gel like viscosity