X 2008 BMW X6 xDrive50i

4.4 L, 8 cyl, Auto (S6), Premium Gasoline

EPA Fuel Economy

Combined: 15 MPG

City: 13 MPG

Highway: 18 MPG

X 2009 BMW X5 xDrive 30i

3.0 L, 6 cyl, Auto (S6), Premium Gasoline

EPA Fuel Economy

Combined: 18 MPG

City: 15 MPG

Highway: 21 MPG