“…Numerous researchers have intensely investigated several renewable bio-fuels, such as biodiesel, primary alcohol, vegetable oils, etc. Among the various renewable bio-fuels, biodiesel is a vastly conformed alternative fuel in compression ignition engines, owing to its finer physicochemical properties (high cetane number, bio-degradable, >10% oxygen content, absence of sulfur and aromatic compound, high flash and fire temperatures, and excellent lubricity) than diesel fuel [4][5][6][7][8]. Despite having various incredible physicochemical properties, the commercialization of biodiesel in automotive sector is confined because of high density, impoverished atomization of fuel, poor oxidation stability, higher NOx emission, higher BSFC (brake specific fuel consumption), lower BTE (brake thermal efficiency), poor cold flow properties (high pour point, high cold filter plugging point (CFPP), and high cloud point), cold start problem, and sticking the piston ring [9,10].…”