Post a pic of your odometer if you get 700 miles from a single tank of gas (13.2g). That means you got about 54mpg.

 

I drive a 2006 Civic Hybrid and I could've made it to 700 miles once, but the station with the lowest price was nearby and I went ahead and got fuel instead of driving in circles just to make the record. When the weather warms back up, I'll post here if a manage to break the 700 mile ceiling sometime!