NOVELTY - A fuel for use in internal combustion engines, comprises: (a) gasoline; (b) a mixture of alcohols comprising by volume: 0.001-30% methanol, 0.001-40% ethanol, 0.001-50% propanol, 0.001-40% butanol, and 0.001-30% pentanol.    USE - The fuel is for use in internal combustion engines, diesel engines, internal combustion engine, and jet engine, and for heating furnaces or boilers, and for use in a furnace, kiln, boiler, or gasifier (claimed).    ADVANTAGE - The fuel, preferably higher mixed alcohol fuels can be effectively used in internal combust on engines, furnaces, boilers and gasifiers in particular blended into gasoline fuels, aviation gasoline, diesel fuels, jet fuels, heating oil fuels, bunker oil fuels, synthetic or bio-produced fuels, heavy crude oils, bitumen, ground petroleum coke and coal. Additionally, the higher mixed alcohol fuels may be utilized neat as a substitute fuel or as a higher BTU substitute for fermented ethanol or ligno-cellulosic ethanol when blended with gasoline. Also, the fuel has reduced harmful combustion emissions and highly cost-efficient.    DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for:    (1) a mixed alcohol fuel for use in an internal combustion engine, comprising, by volume: 0.001-30% methanol, 0.001-40% ethanol, 0.001-50% propanol, 0.001-40% butanol, and 0. 001-30% pentanol;    (2) a jet fuel for use in a jet engine, comprising: (a) kerosene; (b) a mixture of alcohols comprising by volume: 0.001-30% methanol, 0.001-40% ethanol, 0.001-50% propanol, 0.001-40% butanol, and 0.001-30% pentanol;    (3) a fuel for use in heating furnaces or boilers, comprising: (a) heating oil; (b) a mixture of alcohols comprising by volume: 0.001-30% methanol, 0.001-40% ethanol, 0.001-50% propanol, 0.001-40% butanol, and 0.001-30% pentanol; and    (4) a fuel for a furnace, kiln, boiler, or gasifier, comprising: (a) coke particles; (b) a mixture of alcohols comprising by volume: 0.001-30% methanol, 0.001-40% ethanol, 0.001-50% propanol, 0.001-40% butanol, and 0.001-30% pentanol.