The study of gasoline + alcohol and ethers mixtures using the methods of physical-chemical analysis is considered at the present time as a difficult goal as gasoline is an extremely complex mixture of hydrocarbons of varying composition. Ethers and alcohols are being blended with gasoline to increase octane number and to reduce air pollution problems associated with leaded gasoline.Ethers and alcohols used as gasoline additives (oxygenates) have excellent antiknock properties and are environmentally acceptable substances. The calculation of vapor-liquid equilibria of gasoline additives is important because of the difficulty of obtaining experimental values and because it gives a picture of the general behavior of liquid-vapor mixtures. This book provides information not currently available from a single literature source. The book comprises five main parts, each devoted to a specific aspect of gasoline additives. This book provides readers with a very clear understanding of the properties of oxygenates in gasoline blended forms. The editor hopes that industrial researchers, chemists, chemical engineers, and graduate students will recognize this book as a valuable resource reference