PARLIAMENTARY WRITTEN QUESTION
(4 June 2025)
Question Asked
Asked by:
Graham Stuart (Conservative)
Answer
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.
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