LAA Guidance ( Ethanol ) in the U.K. is clear. Refer to the Francis Donaldson, LAA Chief engineer, article (Watch out, link is below) we are grateful to the LAA for this courtesy copy
E10: The LAA does not approve the use of E10 rated Mogas. Your aircraft is not approved to use E10. (Consequently your aircraft insurance policy would likely be invalidated.)
E5: The LAA does permit some suitably modified Europas to use E5 rated Mogas, subject to detailed compliance with directives. However there may be long term implications for your aircraft that you ought consider.
UL91: The LAA promotes the use of AVGAS UL91
The latest fuel use warning from Francis Donaldson September 2021
If you are travelling in Europe you really ought consider acquiring fuel cards.
If you arrive after hours you can often obtain the fuel on a self service basis.
If you don't have a fuel card you may be denied service at some airfields
At a fuel card airfield. If you pay cash or by credit card and you have attended service may be charged more by the airfield.
- BP Cards are free issue
- Total cards require a deposit.
Though a European bank account is no longer required
