It is necessary to prove to automakers that they will get a return if they invest in a more efficient ethanol engine

Professor at the faculty of mechanical engineering, department of energy, at the State University of Campinas (Unicamp), Waldyr Gallo also believes that the government's lack of special attention to ethanol is the main obstacle to the growth of biofuel production and consumption. "Today, we have a fleet made up mostly of flex-fuel vehicles, ready to use ethanol, but which basically uses gasoline."