Nathan,
Thanks for the notice of the 33 mpg average; it's razor thin and awhile coming, a combination of Feb purchase, cold weather driving, a fairly early1200 miles of interstate driving at max+ allowable speeds, a regular commuting climb up out of a river bottom town with cold engine, and some fun playing with 255 hp.

For me, any tank above 32 mpg comes from a decision to drive for FE. Just driving, as my wife said at first,"the same way I drove all the other Accords," will get me 30-32 in combo city-road drives of 30 minutes or over. I do understand why those in Maine or NY with average drives of 10-20 minutes report tanks in low 20's or even teens. Those 240 ICE horses like a lot of hay, especially before warmup and hybrid feature kick in, and just as they do, the trip is over, engine cools, restart, repeat.

The info on this board (discussion and the database) has been very helpful and encouraging to learn to use the hybrid features we paid for. Some of the real (maybe un-real, not thinking of Wayne or anybody in particular here...:=)) hypermilers are responsible for causing me to want to see how close to that EPA number of 37 I can get, and a 60 mile, hilly route (even with a 10mph tailwind) that produced 40.1 mpg confirmed the car could do some things I did not think possible.

My 37 mpg tank is an anomaly, certainly wind and warm weather assisted, but I'm very happy to have it. The mpg spreadsheet I found here (adapted a bit) tells an interesting story: early tanks in low 30s with gas $1.87 produced $.05 and .06 per mile costs; yesterday, a gallon cost $2.18 but the cost per mile was still $.05 because of the 37.6 mpg on that tank.

And, I don't get drowsy on the commute since I've got to watch the mpg.... Advantage HAH.
Lewis