Aluminum Transmission & Engine Cleaner is a concentrated, soluble powder designed to function at elevated temperatures. It cleans and strips away oil, grease and other deposits from transmissions, radiators, and metal parts without foaming problems. It wont leave a residue on parts, plug up the spray cabinets jets or build up inside the parts washer cabinet. Instead of dissolving grease and solids, aqueous cleaners rely on heat, agitation, and soap action to break dirt into smaller particles.