Although Esso super is described (as it has to be) as E5 (meaning it can have up to 5% ethanol in it), Esso say there is NO ethanol in its high octane grade.
Checking out Esso website, although the above is largely true, they do actually state that it is with the exception of Devon, Cornwall, Teesside, N W England and Scotland, due to “Technical” reasons. ( or is the website out of date??)
