TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preferred Composition: The composition further comprises a petroleum based component, and animal fat derived methyl esters. The composition comprises methyl stearate (less than 1, preferably less than 0.5, more preferably less than 0.1%). Preferred Method: The method further comprises, before the step of forming the homogeneous mixture, mixing vegetable derived oil, sodium hydroxide and methanol to form the vegetable derived methyl esters. The homogeneous mixture contains methanol in an amount of 3-10 times by weight of the amount of the fatty acid methyl ester. In the method, where excess methanol is provided in the step of mixing the vegetable derived oil, sodium hydroxide and methanol to form the vegetable derived methyl esters, where adding methanol during the step of forming the homogeneous mixture is unnecessary. The method further involves separating glycerin from the vegetable derived methyl esters before the step of forming the homogeneous mixture. The ratio of urea to methyl esters in the homogeneous mixture is 0.9:1 to 1:1. The solid phase is separated from the liquid phase by filtration, centrifugation, sedimentation, or decantation of the liquid phase. The liquid composition comprises less than 2 (preferably less than 1.5) wt.% of saturated fatty acid methyl esters. The removal of the alcohol is by evaporation or by applying vacuum. The removal of unused urea is by washing with acidified water, where the washed unused urea is separated by a liquid-liquid centrifugal extractor or by a gravity separation. The yield of the liquid composition is at least 43 wt.% of the vegetable-derived methyl esters used to form the homogeneous mixture. Preferred Components: The methyl esters consist essentially of methyl oleate, methyl linoleate and methyl linolenate. The methyl esters comprise (wt.%): methyl linolenate (10), methyl stearate (less than 0.1), methyl linoleate (at least 50, preferably at least 60); and saturated methyl esters (less than 2, preferably less than 1.5, more preferably less than 0.5). The vegetable oils from which the methyl esters are derived comprise soy oil. The petroleum based component comprises fossil fuel derived diesel fuel. The alcohol comprises methanol. EXAMPLE - A composition comprising (wt.%): soy methyl ester containing methyl oleate (19.2), methyl linoleate (72.3), methyl linolenate (8.5) and others (trace) was prepared. The composition had cloud point of -57 degrees C.