SI-1′s INJECTOR AND VALVE DETERGENT Unique formula contains the most powerful high-temperature detergents available to clean gasoline fuel injectors, raising fuel economy by as much as 12%. SI-1 also includes synthetic upper cylinder lubricant, which will help clean intake valves, pollution control valves, combustion chamber deposits, and carburetors (15oz. Bottles).

http://matrixsyntheticoils.com/store/red_line_other_products.html