1991 GMC Sierra 1500 2WD vs 1991 GMC Sierra 1500 4WD
| EPA figure | 1991 GMC Sierra 1500 2WD | 1991 GMC Sierra 1500 4WD |
|---|---|---|
| Model year | 1991 | 1991 |
| Body · drive | Pickup · Rear-Wheel Drive · Diesel | Pickup · 4-Wheel or All-Wheel Drive · Gas |
| Combined MPG | 20 | 14 |
| City / highway MPG | 18 / 23 | 12 / 16 |
| Fuel a year | $4,800 | $4,800 |
| Tailpipe CO₂ (g/mi) | 509 | 635 |
| Engine | 6.2 L 8-cyl | 5.0 L 8-cyl |
| Transmission | Manual 5-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.