← all 2014 GMC Sierra C15 2WD trims
2014 GMC Sierra C15 2WD — 4.3L 6-cyl, Automatic 6-spd, RWD
This 2014 GMC Sierra C15 2WD (4.3L 6-cyl, Automatic 6-spd, RWD) is flex-fuel (gasoline or E85). FLEX-FUEL
20
MPG combined (18 city / 23 hwy)
$3,100
est. fuel cost / year (EPA, 15k mi)
449 g/mi
tailpipe CO₂
Other 2014 GMC Sierra C15 2WD trims
| Trim | Fuel | MPG | Fuel/yr |
|---|---|---|---|
| 6.2L 8-cyl, Automatic 6-spd, RWD | REGULAR | 17 | $3,650 |
| 5.3L 8-cyl, Automatic 6-spd, RWD | FLEX-FUEL | 19 | $3,300 |
EPA fuel type: Gasoline or E85 · class: Standard Pickup Trucks 2WD · retrieved 2026-06-14.