1 Chemicals for use in the servicing and cleaning of carbon build-up on motor vehicles, namely, a chemical fuel additive and cleaner for fuel treatment and liquid chemical for cleaning carbon build-up on oxygen sensors; chemical preparations for use in connection with engines and parts and fittings, namely, chemical additives and cleaners for use with internal combustion engine fuels and chemical engine treatments and additives for diesel fuels and flex fuels; chemical additives to fuel, namely, additives for fuel to clean and restore vehicle parts and components