2015 Chevrolet Impala Bi-Fuel (CNG) vs 2015 Chevrolet Silverado C15 2WD
| EPA figure | 2015 Chevrolet Impala Bi-Fuel (CNG) | 2015 Chevrolet Silverado C15 2WD |
|---|---|---|
| Model year | 2015 | 2015 |
| Body · drive | Midsize · Front-Wheel Drive · Gas | Pickup · Rear-Wheel Drive · Gas |
| Combined MPG | 20 | 19 |
| City / highway MPG | 17 / 25 | 16 / 23 |
| Fuel a year | $3,350 | $3,550 |
| Tailpipe CO₂ (g/mi) | 437 | 478 |
| Engine | 3.6 L 6-cyl | 5.3 L 8-cyl |
| Transmission | Automatic (S6) | Automatic 6-spd |
▲ marks the better official figure on that line: more range, MPG or MPGe; less fuel cost or CO₂. From fueleconomy.gov.