Drove all weekend to Panama Beach Fl and then to Charlotte, im got 309 Miles for 10.29 gallons, mostly driven @ 70 - 75 Miles/H with cruise control.
i know it says you have a WRX, but you have an STi right? if so that's awesome! if i could only ease off the gas pedal.
i had a 23.6 last week at like 320 miles i think, that's the best i've ever gotten, it's usually between 18-20mpg