I did some research - seems to be a very inconsistent picture... some good info here: http://www.groups.tr-register.co.uk/wessex/ethanol-update.html I've sent a message to total to see if that info is still valid.. [EDIT _ its not. the first two sites on the texaco list do not appear to be texaco any more..]
Bp is good where i am, i have also used the shell one now and again over the last 10 years and not had any problems so far, so wonder if they do put any in? 5% would be pretty mild you think? Haven't got any others around us, except tesco they do an unltimate