I've added the first logged tank to the database on GreenHybrid.com. At this time, the overall average for the Prius 2 is 47.6 mpg so I'm coming out slightly behind that with 46.0 mpg. Of course, I've only now started getting truly used to it so we'll see how this plays out in the long run.

To view the most up to date information about my mileage, follow the link above.