It does not. Flex fuel cars are widely used South America, especially Brazil where Ethanol is more available than gas. In North America or Europe it depends. So

It does not. Flex fuel cars are widely used South America, especially Brazil where Ethanol is more available than gas. In North America or Europe it depends. Sometimes it is available directly from OEM, sometimes you need aftermarket modification to add Ethanol sensor to run engine with correct lambda. Here you have list of Flex Fuel cars - cars which has Ethanol sensor and are able to run on gas or Ethanol. https://en.wikipedia.org/wiki/List_of_flexible-fuel_vehicles_by_car_manufacturer https://en.wikipedia.org/wiki/List_of_flexible-fuel_vehicles...