The results of studies aimed at improving many performance properties, including the environmental properties, of automotive gasolines by addition of oxygen-containing components, primarily aliphatic alcohols - methanol and ethanol, and reducing the corrosiveness of alcohol-containing fuels are reported. The corrosion inhibitors, antiwear additives, and a metal deactivator that make up the additive package and can increase the efficiency of gasoline-alcohol fuel composites were developed using available feedstock.