This volume discusses the use of renewable fuels for clean transportation and its applications on internal combustion engines. The contents focus on the key aspects of fuel production processes and its impact on various segments of the transportation sector and for sustainable mobility. Several kinds of fuels are assessed such as biofuels, alcohols, and hydrogen, and their effects on the combustion process are characterized by application. This volume will be of use to those working in academia and industry as well as energy experts and policy makers.