NOVELTY - Fuel and fuel additive each comprises: a pentanol (10-55 vol.%); a butanol (45-90 vol.%); a propanol (0-5 vol.%); ethanol (0-3 vol.%); and methanol (0-3 vol.%).    USE - The fuel and fuel additive is useful in fuel composition (claimed). The fuel, fuel additive and fuel composition are useful for internal combustion engines, which are gasoline engines, diesel engines, jet engines and ship engines, furnaces, boilers and gasifiers, Wankel engines, jet engines, some rocket engines, and gas turbine engines. The fuels and fuel compositions are useful: to power any equipment such as an emergency generator or internal combustion engine; and as heating oils, fuel oils or bunker oils for furnaces, boilers or gasifiers. The fuel additives, fuels or fuel compositions are useful as marine bunker fuels or bunker oils in ship engines.    ADVANTAGE - The fuel additive is substantially free from an oxygenate or an alcohol, where the alcohol is not methanol, ethanol, propanol, butanol, pentanol, hexanol, heptanol and/or octanol. The fuel is stable over an extended period of time e.g. 6-12 months. The fuel additives, fuels and fuel compositions can be utilized without: any changes to a gasoline engine operation and timing; and no changes or only minor changes to other currently operating engines (e.g. diesel engines) and combustion devices, these minor changes can be done quickly, inexpensively and without inconvenience. The fuel additives, fuel and fuel compositions are soluble in diesel fuel and do not impair the cetane level of diesel fuel to the same extent as methanol or ethanol, hence more compatible vapor pressure ratings that allow blending with diesel fuel. The fuel additive reduces the emissions of the greenhouse gas carbon dioxide and pollutants including particulates, carbon monoxide, sulfur dioxide and unburned hydrocarbons while not significantly increasing the formation of nitrous oxides, when the fuel additive is added to gasoline, diesel fuel or jet fuel and combusted in an internal combustion engine. The fuel additives, fuels and fuel compositions reduce smog particulates in gasoline, diesel or jet fuels. The fuel additives, fuels and fuel compositions increase gas mileage of internal combustion engines when blended with gasoline. The fuel additives, fuels and fuel compositions have low solubility in water and are biodegradable. The fuel or fuel additive is less susceptible to fluctuations in intake temperatures compared to other fuel additives such as ethanol or methanol.    DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a fuel composition comprising a fuel components and the fuel additive.