The UView TerraClean Ultimate Fuel System Decarbonizer, No. 201160, cleans the entire fuel system including Oxygen Sensors and the Catalytic Converter. TerraClean's "Pre-mixed" cleaning solution eliminates any handling or mixing of hazardous materials. Other features include a diagnostic visual and audible alert, system pressure relief valve, front and back storage trays, and a cart-style design for added portability.