I took the Civic on a road trip this weekend to the
MREA energy fair. It was about a 120 mile trip from my house and almost entirely freeway driving. Darin and I were taking bets on what kind of mileage I'd see in the Civic while doing 65-70 mph. Half the trip was at 65, the rest at 70 with a few miles on each end at lower speeds. Turns out this is what I got according to the not-yet-calibrated scangauge. If that is accurate, I am completely blown away. I did coast down hills and pulse speed up a bit before coasting, but there is a ton more steady speed driving than P&G there.