more eco-friendly petrol could be introduced to garages in the UK from next year.
The government is consulting on making E10 - which contains less carbon and more ethanol than fuels currently on sale - the new standard petrol grade.
The move could cut CO2 emissions from transport by 750,000 tonnes per year, the Department for Transport said.
However, the lower carbon fuel would not be compatible with some older vehicles.
Current petrol grades in the UK - known as E5 - contain up to 5% bioethanol.
