This book aims to inform readers about the recent developments in the evaluation and utilization of bioethanol fuels. It covers the evaluation and utilization of bioethanol fuels in general, gasoline fuels, nanotechnology applications in bioethanol fuels, utilization of bioethanol fuels in transport engines, evaluation of bioethanol fuels, utilization of bioethanol fuels in general, and development and utilization of bioethanol fuel sensors. This book is the fifth volume in the Handbook of Bioethanol Fuels (Six-Volume Set). It indicates that research on the evaluation and utilization of bioethanol fuels has intensified in recent years to become a major part of bioenergy and biofuels research together primarily with biodiesel, biohydrogen, and biogas research as a sustainable alternative to crude oil-based gasoline and petrodiesel fuels as well as natural gas and syngas. This book is a valuable resource for stakeholders primarily in the research fields of energy and fuels, chemical engineering, environmental science and engineering, biotechnology, microbiology, chemistry, physics, mechanical engineering, agricultural sciences, food science and engineering, materials science, biochemistry, genetics, and molecular biology, plant sciences, water resources, economics, business and management, transportation science and technology, ecology, public, environmental and occupational health, social sciences, toxicology, multidisciplinary sciences, and humanities, among others.