Brazil for example that imported more than 80% of its
petroleum products as at 1979, has reduced the importation rate
by investing extensively on alcohol fuel production from biomass
and has produced cars that run on more than 17% alcohol blends
with a view to the total elimination of the importation of
petroleum by the end of the 21st century. In fact, the government
policy has mandated the minimum of 20–25% blends of ethanol
with petroleum products