I hear a lot of people up in arms about the addition of Ethanol to gasoline. Many places do it just in the wintertime, others do it year round. One of the gas stations in my little town even has a bunch of "100% REAL GAS - NO ETHANOL" signs up all over the place. With all the whining and crying about "people putting water in the gas[sic]", I've honestly never noticed a difference in operation or efficiency.
My guess is that Ethanol earned a bad reputation (1970s, maybe?) when cars used to be carbureted and timing advanced with mechanical weights and such. However, modern cars with EFI and its associated arsenal of sensors simply adapt to whatever difference it makes, but many people are still stuck with the 'ethanol sucks' mentality. True?