One suggestion to Jason, I think

Please post this when people are entering their data:

Do not post the MPG reading from the dashboard; it is usually a few MPGs high.
To calculate MPG: Miles driven since last fill up divided by the gallons you just pumped to fill the tank.

And something on the database like a field for calcualted and another field for dash reading.
This would be most clear to everyone and prevent what I did.
I didn't learn how you all wanted it until I was spanked.
Even then I was only spanked because I expressed to clearly my dash and calculated numbers.
How many in the database are showing dash?
I'd guess quite a few, at least half.
How are they supposed to know?

Need fewer troops to support.
Drive a hybrid.
Best tank 71.65 MPG.

Before this car I spent two years learning hypermiling on my 2004 HCH1.