The utilization of this waste using methanol as well as ethanol as esterifying alcohols to produce biodiesel has been studied[1]. Both biodiesel, methyl and ethyl esters have been evaluated as alternative fuels for diesel engines according to their fuel properties compared to standard diesel as well as the performance of a diesel engine running using 50% b of biodiesel with regular diesel fuel. The results have proved that the fuel obtained by esterification with methyl alcohol having shorter chain than ethyl alcohol was more efficient as a fuel. In this paper, two other alcohols of longer chain length than ethanol were used being propyl and butyl alcohols. The produced biodiesels will be assessed as fuels and compared to regular diesel as well as those obtained using methyl and ethyl alcohols