Ditto Lizard. My absolute best 31 mile one way commute was 62.5 per the display. I know that my battery started out fully charged and ended showing about half capacity. The point is, I cannot imagine any way to boost it. If ever I get a 75 mpg or higher five or ten minute span, it gets countered by a 40 mpg span (or there about). I'd like to go for a ride with someone who can get a 75mpg tank full just to experience the drive. (They'd probably say my being in the car ruined it!!!) Not that I don't believe the posts; it just baffles me.