Vegetable oil is too precious a commodity for use as a fuel even though the present palm oil output with its associated year-end high stock may throw a false picture of its true value. With the global population ever on the rise, the long-term demand for raw food source will continue to rise. In areas where edible oil crop cannot be grown economically, then non-edible crop certainly should be cultivated especially if it can replace fossil fuels. In this regard, Jatropha curcas is a good candidate that can satisfactorily replace diesel oil for generating energy.