The new E10 petrol: will it bring benefits?

By Andrew Barron, Sêr Cymru Chair of Low Carbon Energy and Environment, Swansea University

The introduction of a new type of petrol, E10, in the UK may create some extra costs for owners of older cars, but the aim is to reduce carbon dioxide emissions.

E10 is an automotive fuel made up of 90% regular unleaded petrol and 10% ethanol, hence the E10 name. Ethanol is an alcohol (also called ethyl alcohol or grain alcohol) that is produced both as a petrochemical or via biological processes, from plants, including sugar beet and wheat. It is possible to run cars on pure ethanol, as has been done in…

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