Eliminates carbon at the 6 critical points: MAF Sensor, Throttle Body, Intake Valves, Injectors, Spark Plugs and Combustion Chamber.Contains: (Qty.) (1) Fuel System Cleaner (15 oz.), (1) GDI Intake Valve & Turbo Cleaner (11 oz.), (1) Mass Airflow Sensor Cleaner (4.5 oz.),(1) Throttle Body Cleaner (5 oz.), (1) Engine Friction Reducer (6 oz.), (1) Funnel.For use in gasoline engines only.