fueleconomy.gov/m

X 2005 GMC Sierra 2500 HD 2WD CNG

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

2005 GMC Sierra 2500 HD 2WD CNG

EPA Fuel Economy

Combined: 9 MPG

City: 8 MPG

Highway: 11 MPG

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