Our Honda Fit 2012 (bought last October) is getting on average well under 25 MPG, sometimes as low as 22-23 MPG average according to the dashboard display. Neither my wife nor I are aggressive drivers although we do almost exclusively city driving and don't use the car often.
I'm wondering if there are any obvious things to look for. The only thing I can think of is the few times we've left it idling, although there hasn't been much of that lately since the last time I reset it and the mileage is still at around the 25 MPG mark when everyone else appears to be getting at least 28 MPG even with aggressive driving, etc.
UPDATE The other day I stepped into the vehicle and saw that its current MPG was 19!! Also after less than 100 miles of travel my gas tank was half full. Pretty sure a full tank should get me more than 200 miles, even in city driving. Something must be going on.