2023 GMC Sierra 4WD AT4X vs 2023 GMC Sierra Mud Terrain Tires 4WD
| EPA figure | 2023 GMC Sierra 4WD AT4X | 2023 GMC Sierra Mud Terrain Tires 4WD |
|---|---|---|
| Model year | 2023 | 2023 |
| Body · drive | Pickup · 4-Wheel Drive · Gas | Pickup · 4-Wheel Drive · Gas |
| Combined MPG | 15 | 15 |
| City / highway MPG | 14 / 17 | 14 / 17 |
| Fuel a year | $5,500 | $5,500 |
| Tailpipe CO₂ (g/mi) | 585 | 585 |
| Engine | 6.2 L 8-cyl | 6.2 L 8-cyl |
| Transmission | Automatic 10-spd | Automatic 10-spd |
▲ marks the better official figure on that line: more range, MPG or MPGe; less fuel cost or CO₂. From fueleconomy.gov.