Fecha de publicación: 11/02/2010 Fuente: WIPO "olive oil" Described herein are modified fuels with improved properties. The modified fuels are more efficient when compared to conventional fuels such as gasoline. Additionally, the modified fuels burn more efficiently and produce fewer emissions. Finally, the modified fuels also do not require any modifications to existing engines. Such a modified fuel comprises, e.g., gasoline, methanol, ethanol, castor oil, limonene oil, and olive oil.