X 2005 Mercedes-Benz S600

5.5 L, 12 cyl, Auto 5-spd, Premium Gasoline

EPA Fuel Economy

Combined: 13 MPG

City: 11 MPG

Highway: 17 MPG

X 1999 Mercury Mountaineer 2WD

4.0 L, 6 cyl, Auto 5-spd, Regular Gasoline

EPA Fuel Economy

Combined: 16 MPG

City: 14 MPG

Highway: 19 MPG