Question to the Department for Transport:

To ask the Secretary of State for Transport, if she will make it her policy to transition from E10 to E15 fuel.

The UK Government made E10 the standard (or ‘premium’) grade petrol in Great Britain in September 2021. Previously the grade supplied at UK forecourts contained a lower bioethanol content known as E5.

In making the decision to mandate E10 the Department carried out extensive consultation and undertook a comprehensive public information campaign. The UK did not move to E10 without assurance that vehicles on UK roads were ready to safely use higher blends of bioethanol, and that such a transition would align with industry agreed fuel standards for petrol.

The industry agreed standard for petrol, EN228, currently only permits fuel suppliers to supply petrol containing up to 10% ethanol (E10). The Department continually reviews all policies relevant to biofuels, including on E10. Any changes to fuel regulation would require alignment with industry led fuel standards for petrol and a consultation.