CHEMICAL PREPARATIONS FOR USE IN THE SERVICING OF MOTOR VEHICLES, NAMELY, A CHEMICAL FUEL ADDITIVE FOR FUEL TREATMENT AND CHEMICAL ADDITIVES FOR CLEANING FUEL INJECTORS AND CATALYTIC CONVERTERS; CHEMICAL PREPARATIONS FOR USE IN CONNECTION WITH ENGINES AND PARTS AND FITTINGS THEREFORE, INCLUDING CATALYTIC CONVERTERS, NAMELY, CHEMICAL ADDITIVES FOR USE WITH INTERNAL COMBUSTION ENGINE FUELS AND CHEMICAL ENGINE TREATMENTS AND ADDITIVES FOR DIESEL FUELS; CHEMICAL ADDITIVES FOR THE TREATMENT OF CAT...