A while back, I stopped for gas at a Conoco along I-29 in southern South Dakota. The 87 and 89 had 10% ethanol stickers, as expected. But the 91 had a sticker that said "Contains a trace amount of ethanol" rather than stating that it had no ethanol in it, as you might expect, particularly since the pump had a hose for each grade. Does anyone know why they did this? (The picture is from last fall, so that's why the prices are high... close to a dollar cheaper now!)