NOVELTY - Modified fuel comprises: a base fuel in greater than 40 vol.% of a gallon of modified fuel; a lower alcohol in greater than 10 vol.% of a gallon of modified fuel; and a triglyceride derived from a fatty acid comprising at least one hydroxyl group, where the modified fuel comprises a substantially homogeneous solution and does not contain (i) a surfactant, which is a castor oil ethoxylate or a polyethoxyethanol, and/or (ii) additional naphtha, which does not occurs naturally in the base fuel.    USE - Used as a fuel in all internal combustion engines including spark ignited (gasoline) and compression ignited (diesel) engines, mobile engines including locomotive engines, marine engines, automotive engines motorcycle engines, truck engines, airplane engines and in stationary application including power plants.    ADVANTAGE - The modified fuel: enhances the efficiency of the fuel burning vehicle with increased mileage per gallon, increased horse power and/or increased octane and thus it is economical and more efficient when compared to conventional fuel; undergoes complete combustion and reduces the emission of hydrocarbons, carbon monoxide, carbon dioxide and/or nitrogen oxide into the environment and thus it is environmental friendly; does not require any modifications to existing engines; does not contains surfactants and naphtha; and increases engine life by preventing the formation of residue within the engine.    DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for:    (1) a modified fuel comprising either (a) a base fuel, (b) a lower alcohol greater than 10 vol.% of a gallon of modified fuel, (c) a triglyceride derived from a fatty acid comprising at least one hydroxyl group and (d) a terpene present at less than 0.1 wt.% of the modified fuel or (a1) the base fuel as per se, (b1) methanol in greater than 10 vol.% of a gallon of modified fuel, (c1) ethanol in greater than 5 vol.% of a gallon of modified fuel and (d1) the triglyceride as per se, where the modified fuel comprises a substantially homogeneous solution;    (2) a process for producing the modified fuel comprising: either (A) mixing the base fuel (greater than 40 vol.% of a gallon), the lower alcohol, and the triglyceride for a sufficient time and temperature; or (B) mixing the base fuel, lower alcohol (greater than 10 vol.% of a gallon) and a terpene (less than 0.1 wt.%); or (C) mixing the base fuel, methanol (greater than 10 vol.% of a gallon), ethanol (greater than 5 vol.% of a gallon) and the triglyceride;    (3) a modified fuel produced by the above process;    (4) a method for enhancing the efficiency of a fuel burning vehicle, comprising introducing the modified fuel into the engine of the vehicle;    (5) a method for reducing the emission of a fuel burning vehicle, comprising introducing the modified fuel into the engine of the vehicle; and    (6) a composition or a kit for modifying the properties of the base fuel, comprising the triglyceride, a natural oil and a terpene.