| 摘要 |
<p>Disclosed are methods for removing engine deposits in a recprocating internal combustion engine by introducing a cleaning composition into an air-intake manifold of a warmed-up and idling reciprocating internal combustion engine and running the engine while the cleaning composition is being introduced. One such cleaning composition suitable for these methods comprises a first solution containing a mixture of: (a) a phenoxy mono- or poly(oxyalkylene) alcohol; (b) at least one solvent selected from (1) an alkoxy mono- or poly(oxyalkylene) alcohol and (2) an aliphatic or aromatic organic solvent; and (c) at least one nitrogen-containing detergent additive; and a second solution containing a mixture of: (d). a phenoxy mono- or poly(oxyalkylene) alcohol; (e) a cyclic carbonate; and (e) water.</p> |
