Whenever possible, go for the 98 or 99 Ron E5 unleaded.
Not just because of the ethanol, but from posts I've read from people such as Abbey Motorsport, the 350 ECU cannot retard the timing enough past 4800rpm when on 95 ron fuel which will result in engine knock, uneven high pressure shockwaves in the cylinders during combustion and possibly damage the pistons.
Had to fill up with 95 ron on Thursday as there was nothing else available.
I felt so sad as it filled up as it means keeping the revs down, but even driving below 4k revs is still bliss compared to driving the family Kia Sportage