I've noticed better mileage with the ECON off, too! Especially on the hwy!My wife and I average 36 mpg's on our LX Sedan with mixed driving. I'd say 60 hwy/40 city with the econ off. If its on we lose a lot of mpg's. Go figure.
If we drive more city we still average 32 mpg's which has been our lowest. We have over 10k miles on it.