X 2003 Chevrolet Silverado 2500 2WD (Bifuel)

6.0 L, 8 cyl, Auto 4-spd, Regular Gasoline or Natural Gas

EPA Fuel Economy

Regular Gasoline

Combined: 10 MPG

City: 10 MPG

Highway: 11 MPG

Natural Gas

Combined: 10 MPG

City: 9 MPG

Highway: 11 MPG

X 1989 Chrysler Newport/Fifth Avenue

5.2 L, 8 cyl, Auto 3-spd, Premium Gasoline

EPA Fuel Economy

Combined: 17 MPG

City: 15 MPG

Highway: 20 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