Tank 1: 322.8 miles, 8.206 gallons, 39.33 mpg
Tank 2: 360.4 miles, 8.257 gallons, 43.65 mpg
Tank 3: 315.1 miles, 7.757 gallons, 40.62 mpg
Tank 4: 330.1 miles, 7.672 gallons, 43.03 mpg
Tank 5: 329.5 miles, 7.334 gallons, 44.93 mpg (extra effort to drive smoothly)
Tank 6: 353.9 miles, 7.941 gallons, 44.57 mpg (extra effort to drive smoothly)
Tank 7: 335.1 miles, 7.760 gallons, 43.18 mpg (new Doug Thorley exhaust installed at start of tank)
Tank 8: 328.0 miles, 6.989 gallons, 46.93 mpg (extra effort to drive smoothly)
Overall average: 2674.9 miles, 62.006 gallons, 43.139 mpg
Most - probably 90% - of my driving is commuting to and from work. My commute is 5 miles in town, 14 miles on the freeway, then 2 miles in the city. The freeway driving is rarely wide open, but also rarely stop-and-go. I can usually cruise along at 60 mph except for 2-3 place where I have to slow to around 30 for half a mile or so. There are several hills, but nothing all that bad. But it's very definitely not flat.
Through these 8 tanks I had stock air pressure in the tires. I'm now trying them at higher pressure in an attempt to eek a little more mileage out of the car.