Abstract: A piston and ring cleaner fluid for cleaning and decarbonizing internal combustion engines adapted to be added through spark plug openings for soaking and removal comprises (1) 40 to 50 percent by weight of Benzyl Alcohol, Chemical Abstract Service Registry Number 100-51-6; (2) 45 to 55 percent by weight of NMP, Chemical Abstract Service Registry Number 872-50-4; and (3) 4 to 10 percent by weight of NP 9, Chemical Abstract Service Registry Number 127087-87-0.

Abstract: A fluid for cleaning and decarbonizing internal combustion engines is aerosol sprayed into the air intake system and throttle body then scrubbed. The fluid comprises (1) 45 to 55 percent by weight of Acetone, Chemical Abstract Service Registry Number 67641; (2) 25 to 35 percent by weight of Butyl Cellosolve, Chemical Abstract Service Registry Number 000111-76-2; (3) 8 to 12 percent by weight of Benzyl Alcohol, Chemical Abstract Service Registry Number 100-51-6; (4) 3 to 7 percent by weight of Propylene Glycol, Chemical Abstract Service Registry Number 000057-55-6; (5) 3 to 5 percent by weight of Ethylene Glycol, Chemical Abstract Service Registry Number 000107-21-1; (6) 0.8 to 1.2 percent of Polyol Ester, Chemical Abstract Service Registry Number 11138-60-6; and (7) generally 1 to 5 percent by weight of Carbon Dioxide, Chemical Abstract Service Registry Number 128-38-9.

Abstract: An air induction cleaner and decarbonizer fluid for cleaning and decarbonizing internal combustion engines adapted to be injected by sprayers while the engine is running comprises (1) 10 to 20 percent by weight of Butyl Cellosolve, Chemical Abstract Service Registry Number 000111-76-2; (2) 40 to 50 percent by weight of Benzyl Alcohol, Chemical Abstract Service Registry Number 100-51-6; (3) 10 to 30 percent by weight of Propylene Glycol, Chemical Abstract Service Registry Number 000057-55-6; and (4) 10 to 20 percent by weight of Ehtylene Glycol, Chemical Abstract Service Registry Number 000107-21-1.

Abstract: An engine oil supplement fluid for cleaning and decarbonizing internal combustion engines IS adapted to be added into the oil crank case and comprises (1) 20 to 30 percent by weight of Proprietary Calcium Detergent, Chemical Abstract Service Registry Number 61789-86-4; (2) 69 to 79 percent by weight of Hydrocarbon Diluent Oil, Chemical Abstract Service Registry Number 64742-65-0; and (3) 1 to 10 percent by weight of Fluid Modifier, Chemical Abstract Service Registry Number 68649-11-6.

Abstract: Fluids for cleaning and decarbonizing internal combustion engines include a fuel system and injector cleaner fluid to be added to the fuel tank, an engine oil supplement to be added to the oil crank case, an aerosol air intake cleaner to be aerosol sprayed into the air intake system and throttle body then scrubbed, an air induction cleaner and decarbonizer to be injected by sprayers while the engine is running, and a piston and ring cleaner fluid for cleaning and decarbonizing internal combustion engines.

Abstract: An engine decarbonizing system comprises a manifold with one central and four lateral bores. Pressurized air and decarbonizing fluid in separate containers are adapted to be co-mingled and fed to and through the manifold. A tube assembly has an output tube and two parallel input tubes operatively coupled. The output tube is coupled to the central bore and the two parallel input tubes are coupled to the containers for dispensing pressurized decarbonizing fluid. Four short tubes are coupled to the lateral bores and second ends have a rigid cylindrical nozzle selectively positionable within a spark plug for the delivery of a spray of pressurized decarbonizing fluid. Four switches are coupled to the manifold adjacent to the interface between a short tube and a short bore for selectively allowing or precluding the flow of decarbonizing fluid.

Abstract: A cleaning system for engines for combusting fuel and converting the combusted fuel to mechanical energy includes a liquid constituting an engine enhancer. The liquid comprises a super concentrated formula of carbon cleaning solvents and a high quality lubricant to clean and lubricate the air induction system. A delivery assembly for the fluid includes a supply tank. A nozzle at the output end of a tube includes a main body portion with a small cylindrical outlet and a cylindrical inlet and a frustoconical transition zone between the inlet and the outlet. The nozzle also has a cylindrical filter with a mesh formed with an opening to preclude the passage of solid particles. A hollow cylindrical support block allows the passage of fluid through the nozzle and out of the outlet. A retention assembly is adapted to fixedly position the nozzle in operative position adjacent to the air intake assembly.

Abstract: An engine decarbonizing system comprises a manifold with one central and four lateral bores. Pressurized air and decarbonizing fluid in separate containers are adapted to be co-mingled and fed to and through the manifold. A tube assembly has an output tube and two parallel input tubes operatively coupled. The output tube is coupled to the central bore and the two parallel input tubes are coupled to the containers for dispensing pressurized decarbonizing fluid. Four short tubes are coupled to the lateral bores and second ends have a rigid cylindrical nozzle selectively positionable within a spark plug for the delivery of a spray of pressurized decarbonizing fluid. Four switches are coupled to the manifold adjacent to the interface between a short tube and a short bore for selectively allowing or precluding the flow of decarbonizing fluid.