Aug 12, 2012
I see you are new to GB in Iowa, welcome. Unlike most states, in Iowa and Nebraska the least expensive fuel is "Unleaded Plus" or "super unleaded" and is an e10 blend. GB prices should be reported by grade/octane not by lowest to highest price. So straight unleaded (100% gas) is reported on GB as regular even though is it more expensive than midgrade.
Thanks for participating and again, welcome.