About 10mpg for me, and I am not heavy footed. On the highway, I get about 16/17 mpg (if speeds stay under 70 MPH). It is a what, 6000lb SUV? In general BMWs seem pretty thirsty. Our 2007 750Li gets a solid 12/13 mpg in the city, and when I had a 2006 330i, it was never over 15mpg in the city!