TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preferred Method: The method further involves adding an oxygenated component to the biofuel blend. The method involves blending a petroleum distillate (75-85 vol.%) with palm oil methyl ester (5-15 vol.%) and either soybean oil methyl ester or rapeseed oil methyl ester (5-15 vol.%). In the method: (a) the petroleum distillate is a diesel; (b) at least one biofuel blend reference properties correlate within an acceptable tolerance to corresponding reference properties for any of blends 4, 6, and 11 given in Tables II and III of the specification; and where (c) the reference properties are selected from cloud point, conductivity, low temperature flow, cold filter plugging point, ignition quality, iodine value, and modified Rancimat value. The method further involves adding an oxygenated component to the biofuel blend. Preferred Components: The biofuel blend comprises a petroleum distillate (60-90 vol.%), at least two fatty acid alkyl ester-containing biofuels (10-40 vol.%). The petroleum distillate is a diesel or a jet fuel. The fatty acid alkyl ester-containing biofuels are selected from soybean oil alkyl ester, rapeseed oil alkyl ester, palm oil alkyl ester, canola oil alkyl ester, sunflower oil alkyl ester, olive oil alkyl ester, corn oil alkyl ester, tallow oil alkyl ester, coconut oil alkyl ester, jatropha oil alkyl ester, yellow grease alkyl ester, animal fat alkyl ester, used cooking oil alkyl ester, and alkyl esters formed by the trans-esterification of either algae-derived triglycerides or oils from halophytes. The sample of the petroleum distillate feedstock is obtained from a refinery slip stream. The biofuel blend is a biodiesel blend which comprises (vol.%): diesel (75-85), palm oil methyl ester (5-15), and either soybean oil methyl ester or rapeseed oil methyl ester (5-15). The biofuel blend comprises a diesel or a jet fuel (80 vol.%), palm oil methyl ester (5 or 10 vol.%), and either soybean oil methyl ester or rapeseed oil methyl ester (10 or 15 vol.%). The petroleum distillate is a diesel or a jet fuel and the biofuel blend comprises palm oil methyl ester (5-15 vol.%) and either soybean oil methyl ester or rapeseed oil methyl ester (5-15 vol.%). The diesel satisfies the specifications of ASTM D975 and EN 590. The biofuel blend contains an oxygenated component. EXAMPLE - No suitable example given.