X 2010 Porsche 911 Turbo S Cabriolet

3.8 L, 6 cyl, Auto 7-spd, Premium Gasoline

EPA Fuel Economy

Combined: 19 MPG

City: 16 MPG

Highway: 24 MPG

X 2002 Dodge Ram Van 2500 2WD CNG

5.2 L, 8 cyl, Auto 4-spd, Natural Gas

EPA Fuel Economy

Combined: 13 MPG

City: 12 MPG

Highway: 14 MPG