Not true. I always got an average of 22 mpg around Dallas/Fort Worth and 30 mpg average cruising on the highway. This was NOT driving it easy either. I actually still have the window sticker for it too.
I just looked at the window sticker and it's actually rated at 22 city 30 highway. But mine was an '03 model.
Out of the three people I know that have skittles, (2 modded, 1 stock), the stock guy gets only 20MPG Hwy. the other 2 said that when they bought theirs, the HWY mileage was ALWAYS less than 25. and that was driving it moderate.