With the ethanol content in the UK about to rise to 10% sometime this year here is a link to a good balanced asseement.
http://www.groups.tr-register.co.uk/wessex/ethanol-update.htmlSome interesting information on the current situation which I wasn't aware of.
BP Ethanol is added at 5% to unleaded petrol at all sites across the UK. BP Ultimate (super unleaded petrol) does not have Ethanol added, except in the South West of England.
Esso Ethanol is added at 5% to unleaded petrol at most sites in the UK. Esso Super Unleaded petrol does not contain Ethanol, except in the South West of England (Devon & Cornwall)
Shell Shell has repeatedly refused to answer the question. It is therefore an assumption only, that all Shell petrol should be considered to contain 5% Ethanol.
Texaco Ethanol is added at 5% to unleaded petrol. Texaco Super Unleaded petrol does not contain Ethanol.
Total Ethanol is not added to any Total fuel (including standard unleaded petrol). Except in the North West and South East of England.