Hi - First time post long time viewer. I also have a 2006 scion xb 5speed. I have had some great luck hypermiling my xb. I'm usually at cleanmpg.com but read lots of forums here.
Here is my lifetime chart from cleanmpg.com
My best ever was 47.1
My lifetime average is:
The scion xb is a great car- I really love it.
Its nice to meet you all.