Do you have a lot of stops and starts?
I have an 11 XC. On the highway, I usually fill up at around 200 miles and the gas light has not come on. When I'm riding around the city, the gas light turns on closer to 150 miles (I could be a lot off because I am more used to kilometres as I am from Canada, but…)
These are some big engines, and the torque is fun as heck, but it is murder on the milage.
2011 Cross Country
Stage One Exhaust