Cleaning Formulation and Method for Internal Combustion Engines

摘要

Compositions and methods are provided for cleaning and/or rejuvenating internal combustion engine components, including catalysts of the type used in vehicle catalytic converters. The compositions of the invention comprise (a) at least one an aliphatic or cycloaliphatic hydrocarbon solvent; (b) at least two aromatic hydrocarbon solvents; (c) at least one hexanol; (d) at least one additional lower alkyl alcohol having from 1-5 carbon atoms; (e) at least one ketone solvent; and (f) optionally further organic solvents selected from the group consisting of ester solvents and terpene solvents.