You need to find a pump that has separate hoses for the E0 or else you will get a dose of whatever the last person pumped. Unless there is something underground that could still mix the fuels?interesting vids from Chickanic about eathanol content as she uses a simple cheep tester + finds 5% in any E0 gasses + noted that gas pumps with several selections pump whatever from the last customer @ 1/3 to a gallon before your selection + even some spendy canned E0's are NOT eathanol free!! in her experience some canned fuels run poorly, just cant trust most anything these days
If your station doesn't have separate hose you could run a gallon or 2 into your car before filling your small engine gas cans.