REGULAR PRICE $219.99. We use a professional fuel exchange cleaning machine that is designed to thoroughly flush away harmful deposits and keep the fuel system uncontaminated. It's an independent stand alone system that temporarily replaces the vehicle's fuel supply and automatically performs cleaning and diagnostic functions. The mixture of cleaning solution and fuel circulates through the entire fuel system, loosening and dissolving accumulated deposits and contaminants that can damage the vehicle's engine if left untreated. The debris is then either filtered through the system or combusted and released with the vehicle's exhaust.