| 摘要 |
PROBLEM TO BE SOLVED: To obtain a fuel oil composition having low-temperature fluidity, and improved lubricating properties, enabling a stable operation in virtue of the capability of stable supplying a fuel and air and reduced in the tendency to wear a fuel injection nozzle by mixing a fuel oil with an olefin polymer and an oxidation-modified olefin polymer. SOLUTION: All of fuel oils which are used for gasoline engines, diesel engines, etc., and are fuels for engines for vehicles, etc., and include especially fuel oils for diesel engines such as gas oil, A oil and oils containing various additives. One hundred (100) pts.wt. this fuel oil is mixed with 0.005-0 pts.wt. 2-20Cα-olefin homo-or copolymer or an ethylene/α-olefin copolymer having an ethylene content of 50-85mol%, each of which has a number-average molecular weight of 2,000-20,000, 0.01-10 pts.wt. oxidation-modified olefin polymer which is a product obtained by modifying an olefin polymer by oxidation and having a number-average molecular weight of 700-10,000 and optionally other additives.
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