← all 2014 GMC Sierra C15 2WD trims
2014 GMC Sierra C15 2WD — 6.2L 8-cyl, Automatic 6-spd, RWD
This 2014 GMC Sierra C15 2WD (6.2L 8-cyl, Automatic 6-spd, RWD) takes regular (87-octane) gasoline. REGULAR
17
MPG combined (15 city / 21 hwy)
$3,650
est. fuel cost / year (EPA, 15k mi)
530 g/mi
tailpipe CO₂
Other 2014 GMC Sierra C15 2WD trims
| Trim | Fuel | MPG | Fuel/yr |
|---|---|---|---|
| 4.3L 6-cyl, Automatic 6-spd, RWD | FLEX-FUEL | 20 | $3,100 |
| 5.3L 8-cyl, Automatic 6-spd, RWD | FLEX-FUEL | 19 | $3,300 |
EPA fuel type: Regular · class: Standard Pickup Trucks 2WD · retrieved 2026-06-14.