Most recent Odometer: 172,555
Total Gallons: 5601.901
Max MPG: 36.30490956
Min MPG: 24.36298614
Lifetime Average MPG: 30.77054968
Average Miles per Tank: 345.50501
Max Miles Per Tank: 448
MPG Average for 2006: 30.38690282
MPG average for 2007: 31.13307143
MPG Average for 2008: 31.30615882 (Sept 2008 Yokohama ADVAN S.4 tires)
MPG Average for 2009: 31.18706206
MPG Average for 2010: 31.5401313 (Nov 2010 installed Continental ExtremeContact DWS tires)
MPG Average for 2011: 30.01625232
MPG Average for 2012: 30.70626477
MPG Average for 2013: 30.76753646 (Nov 2013 installed Bridgestone Potenza RE970AS Pole Position tires)
MPG Average for 2014: 29.00807236 (to-date)
After the Bridgestones where installed the fuel mileage has rarely been above 30mpg, but they suite my driving style much better than the Yokohama or Continental tires I had before.
My previous car was a Subaru Impreza WRX, which averaged 23mpg. If I would have kept that car to this day I would have used 7502 gallons of premium fuel in the same distance. I saved about 1900 gallons of fuel, and 37050 pounds of CO2.