Ensure your semi is Ready for the Road Ahead with clean wheels and improved brake performance, with the Gunk Chlorinated Brake Parts Cleaner 19-oz. To remove contaminants that hinder brake performance, this spray uses a variety of compounds that penetrate beyond surface-level parts and remove dust, dirt, oil, and other contaminants that hinder brake performance. Fashioned with a quick-drying formula for rapid tune-ups that keep your brakes at their best. FleetPride is your First Click in Heavy Duty .