We have all the different blends here up to 85% ethanol mixtures. The more ethanol there is, themore power you will get from your turbo motor because of a much lower tendency to pinking. You need more of it per unit air though, but it costs equally less to compensate, at least in here. Needs a remap of course, but it's easy on a megasquirt where you can run switchable tables for different fuel types.