Moreover, biodiesel generated from RCO is found to be of comparable quality to diesel (fossil ori-gin) (Banerjee and Chakraborty, 2009). However, a major hurdle to mass-production of biodiesel is the cost as compared to conventional diesel fuel, especially if fresh cooking oil is used as the feedstock. On the other hand, RCO being a waste residue is an economic source for biodiesel production, especially for increasing the supply of raw materials for biodiesel production (Enweremadu andMbarawa, 2009; Zhang et al., 2012). This is especially the case when feedstock costs constitute approximately 80% of the total costs of operation when using cooking oils (Balat and Balat, 2008).