| 摘要 |
A clear stable motor fuel composition having an improved octane rating comprising alcohol selected from the group consisting of methanol in the amount of about 2.0 to 5.0 vol. %, ethanol in the amount of about 2.0 to 10.0 vol. %, and mixtures thereof in the amount of about 3 to 9.0 vol. %, about 2.0 to 10 vol. % of a cosolvent alcohol selected from the group consisting of tertiary butyl alcohol, isopropanol, and mixtures thereof; water to provide a total water concentration of about 0.1 to 0.5 wt. % (basis motor fuel composition); about 0.01 to 2.0 weight percent (basis motor fuel composition) of a nonionic surfactant represented by the formula alpha-hydro omega-hydroxy-poly (oxyethylene) poly (oxypropylene) poly (oxyethylene) block copolymer; and the balance comprising the base fuel gasoline.
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