Homogeneous charge compression ignition engine fuel oil composition

摘要

PROBLEM TO BE SOLVED: To provide a fuel oil composition for a homogeneous charge compression ignition engine that is the fuel oil composition in which an oxygen-containing compound is blended, and that enables a smoke discharge amount to be sufficiently reduced even at various fuel injection times.SOLUTION: The fuel oil composition for a homogeneous charge compression ignition engine contains an oxygen-containing compound, and has a cetane number of the fuel in the range of 35-45, an initial boiling point of 20°C or more and 130°C or less, a 50 vol.% distilling point of 60°C or more and 180°C or less, an end point of 200°C or more and 300°C or less, a kinematic viscosity at 30°C of 0.6 mm/s or more and 0.82 mm/s or less and a surface tension at 25°C of 20.0 mN/m or more and 23.5 mN/m or less, the oxygen-containing compound is an alcohol or a monoether, and a content of the oxygen-containing compound is 2-15 vol.%.