Is the estimated gas mileage close? I had a van that was getting 17 miles a gallon and this one boas...

depends on type of fuel-depends on type of driving-depends on speed and wind- driving at 55 to 60 will be best miliage- if driving that speed & still poor mileage- if the motor seems to run good it could be map or an o2 sensor - bad driving lots of starts and stops low tire preasure hilly roads air condition and idling, will all lead to really poor mileage. hope this will help!  

Thank you for taking time to answer. I will take it all into consideration. I am actually looking forward to buying a new tank of gas to estimate!

The EPA fuel mileage estimates are based on optimal conditions (in a laboratory) and excellent driving habits (slow acceleration).  My Nissan was rated at 16c/22h, but I basically get 17 no matter what I do and where I drive.

It actually does hit 32 or 33 on the highway, which for a compact isn't that hard to acheive these days.