Laruski,

Evan Fusco wrote an article that is in the 'learn' section of this forum on MPG, particularly directed towards new owners like yourself who are far from EPA. Recommended reading.

The bottom line: The *average* HSD vehicle will be about 10% below EPA. Driving conditions and driver habits will place each driver on a bell curve that extends 20% from the average in either direction.

In the meantime, fill up your tyres, and enjoy the ride ! My wife would kill for that car ..