X 2003 GMC Sierra Denali 1500 AWD

6.0 L, 8 cyl, Auto 4-spd, Regular Gasoline

EPA Fuel Economy

Combined: 13 MPG

City: 11 MPG

Highway: 15 MPG

X 2008 Chevrolet TrailBlazer 2WD

4.2 L, 6 cyl, Auto 4-spd, Regular Gasoline

EPA Fuel Economy

Combined: 16 MPG

City: 14 MPG

Highway: 20 MPG