2018 GMC Sierra C15 2WD vs 2018 GMC Sierra K15 4WD
| EPA figure | 2018 GMC Sierra C15 2WD | 2018 GMC Sierra K15 4WD |
|---|---|---|
| Model year | 2018 | 2018 |
| Body · drive | Pickup · Rear-Wheel Drive · Gas | Pickup · 4-Wheel Drive · Gas |
| Combined MPG | 18 | 19 |
| City / highway MPG | 16 / 22 | 17 / 22 |
| Fuel a year | $3,700 | $3,550 |
| Tailpipe CO₂ (g/mi) | 495 | 474 |
| Engine | 5.3 L 8-cyl | 4.3 L 6-cyl |
| Transmission | Automatic 8-spd | Automatic 6-spd |
▲ marks the better official figure on that line: more range, MPG or MPGe; less fuel cost or CO₂. From fueleconomy.gov.