Todd,

In the database, are you putting your FCD mpg, or are you putting
down what you calculate at the pump? And if it is calculated, is it
much different than what you're seeing on the FCD?

And you mentioned some high mpg numbers (40 to 60) for a couple
of trips. Did the rest of your driving on the same tank(s) bring the
mpg down?

First, I'd be concerned if there's a big difference between the FCD
and your calculated mileage. The difference is not big, in my case --
about 1 to 2 mpg above or below what I calculate.

If the difference isn't that big with your car, then hopefully you just
have a car that needs more time to break in, as mentioned by Greg.

Hoping you see great improvement soon!
jinno