I'm at 5000 mi and my mileage hasn't really changed since I left the showroom. Maybe my first tank of gas was low - but I still didn't know how to drive for FE. Since about 500 mi. I've watched my speed/acceleration/conditions ahead/route, etc. I use cruise control as often as possible. I'm getting about 27/mpg and am pretty happy with that - but not expecting much more.