2005 GMC Sierra 1500 AWD vs 2005 GMC Sierra 2500 HD 2WD CNG
| EPA figure | 2005 GMC Sierra 1500 AWD | 2005 GMC Sierra 2500 HD 2WD CNG |
|---|---|---|
| Model year | 2005 | 2005 |
| Body · drive | Pickup · 4-Wheel or All-Wheel Drive · Gas | Pickup · Rear-Wheel Drive · Natural gas |
| Combined MPG | 13 | 9 |
| City / highway MPG | 12 / 15 | 8 / 11 |
| Fuel a year | $5,150 | $5,150 |
| Tailpipe CO₂ (g/mi) | 684 | 781 |
| Engine | 6.0 L 8-cyl | 6.0 L 8-cyl |
| Transmission | Automatic 4-spd | Automatic 4-spd |
▲ marks the better official figure on that line: more range, MPG or MPGe; less fuel cost or CO₂. From fueleconomy.gov.