Vehicles need to run 10% richer on E10 to maintain correct strict air:fuel ratios because of the burn. The economy may be cheaper by the L, but the reduced KM use & other effects in the long run i think wade me off the option of using it.
Xany looks like he will come along for the day !
Make it noted to all the others to have nice COMFY SWIM-WEAR ! as all day in togs gets annoying, if they don't fit nicely lol.