← all 2014 GMC Sierra K15 4WD trims
2014 GMC Sierra K15 4WD — 6.2L 8-cyl, Automatic 6-spd, 4WD
This 2014 GMC Sierra K15 4WD (6.2L 8-cyl, Automatic 6-spd, 4WD) takes regular (87-octane) gasoline. REGULAR
17
MPG combined (14 city / 20 hwy)
$3,650
est. fuel cost / year (EPA, 15k mi)
536 g/mi
tailpipe CO₂
Other 2014 GMC Sierra K15 4WD trims
| Trim | Fuel | MPG | Fuel/yr |
|---|---|---|---|
| 4.3L 6-cyl, Automatic 6-spd, 4WD | FLEX-FUEL | 19 | $3,300 |
| 5.3L 8-cyl, Automatic 6-spd, 4WD | FLEX-FUEL | 18 | $3,450 |
EPA fuel type: Regular · class: Standard Pickup Trucks 4WD · retrieved 2026-06-14.