StuF said:
Seems the answer is purely to use Super Unleaded every time you fill up as this doesnt contain any of the ethanol!
Thats what I will be doing from now on!
Under RTFO guidelines, all fuel since 2009 has 5% ethanol, so I don't think there is any escaping it.
edit, although I've just read this (bottom section of page):
http://www.groups.tr-register.co.uk/wessex/ethanol-update.html" onclick="window.open(this.href);return false;
That was written in Feb 2011.
Here is something from March 2012 and clarifies a lot of the myths floating about:
"It was confirmed that most super premium petrol (i.e. octane quality of 97(RON) or above) does not currently contain any ethanol.
In addition, some 95 RON fuels are supplied in UK without any ethanol content. The UK distribution network means that garages may get fuel from any of the refineries and the ethanol is added when the fuel is put into the tanker. This introduces an inconsistency such that not even the garage selling the fuel knows whether the fuel contains any ethanol..."
http://www.sam-manicom.com/2012/03/a-question-of-ethanol/#.U5tE0vldW1g" onclick="window.open(this.href);return false;
Need to start reading labels on petrol pumps now.