no offense man, i dont wanna come off sounding like an asshole, but i and many others here have seen plenty of these threads about poor gas milage,its an SUV, you can't expect good gas milage out of an SUV unless your driving an escape hybrid or something (and thats not even a real truck), the xterra is a real truck with an underpowered V6 (except for the supercharged 02+), it has the aerodynamics of a brick, and the 15/18 on the window sticker is based on ideal conditions, i get about 12-14mpg in the winter and i've hit 18mpg once in the summer, i didn't buy the X for the milage, i bought it for its capabilities, don't let the poor milage ruin your X for you