GMC Sierra 2500 HD 4WD CNG Fuel Economy History
MPG by year — EPA official data.
Best MPG Year
2005
9 MPG combined
Latest Model
2005
9 MPG combined
| Year | Engine | City | Hwy | Combined | Fuel Cost/yr | |
|---|---|---|---|---|---|---|
| 2005 | CNG CNG | 8 | 11 | 9 | $4,950 | Details → |
MPG by year — EPA official data.
| Year | Engine | City | Hwy | Combined | Fuel Cost/yr | |
|---|---|---|---|---|---|---|
| 2005 | CNG CNG | 8 | 11 | 9 | $4,950 | Details → |