@Daox- I agree that the grille block helps. I blocked off half of my grille, and gained 1-2mpg with about an hour's worth of work.
I still need more mpg... and I have to check my tire pressure...
The other problem with the xB is the short gear ratios, especially compared to it's Echo relative. It makes the 1NZ-FE peppy in town, but high strung at highway speeds.
__________________
|