I have found that learning to drive a hybrid is more of an art than a science. When I first bought my Prius 9 months ago, I could barely break 40 mpg. I began, however, paying more attention to the mileage I was getting. In time, on my own, I cracked 50 mpg. It's totally changed my driving habits. I went from a speeding, mildly road raging driver to a mild, patient driver trying to maximize mileage. I just bought a Camry hybrid & was shocked to see that immediately I was getting 38-39 mpg on the brand new car. This was on a 200 mile trip from the dealer to home on mixed terrain (for Indiana). Give yourself time. Your mileage will improve.