Almost all one needs to know about fuel seems to be detailed here!
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www.fbhvc.co.uk
But as said above, basically avoid E10 like the plague. You can use additives like Millers EPS, or stay with the higher octane fuels that have a lower Ethanol content.
Over here I have found that using 98 Octane works out cheaper than adding EPS, and the 98 here has a low Ethanol content. And, the car seems to prefer the higher rating!