| 摘要 |
PROBLEM TO BE SOLVED: To provide a fuel additive composition which improves the operation of a diesel engine particulate substance trap and is stable in fuel. SOLUTION: The fuel additive metal salt composition is effective for improving the operation of a diesel engine particulate substance trap when it is added to a diesel fuel so as to give a metal content of 1-25 ppm to the fuel. The composition contains at least one oil-soluble or oil-dispersible perbasic metal salt of an acidic organic compound and contains a metal in an amount of 5-85 mass%, i.e. a stoichiometrically excess amount over that required to neutralize the anionic component of the salt. The metal is selected from the group consisting of Ca, Fe, Mg, Sr, Na, Ti, Zr, Mn, Zn, and Ce. COPYRIGHT: (C)2004,JPO
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