NRCan fuel consumption ratings
2015 GMC Sierra — what a year of fuel costs
Official consumption ratings, your kilometres, your pump price. No sign-up, and every number is editable.
Your vehicle
Your driving
$4,340
2015 GMC Sierra · 14 L/100 km combined · 20,000 km a year in Ontario.
- Per month
- $362
- Fuel burned
- 2,800 L
- Tailpipe + grid CO₂
- 6,468 kg
All 10 rated versions
NRCan rates each engine and transmission separately. The figure above uses the median one, so a single halo trim cannot skew it.
| Version | Engine | Combined | Cost a year |
|---|---|---|---|
| Sierra | 4.3 L · A6 | 11.9 L/100 km | $3,689 |
| Sierra | 4.3 L · A6 | 17.1 L/100 km | $5,301 |
| Sierra | 5.3 L · A6 | 12.7 L/100 km | $3,937 |
| Sierra | 5.3 L · A6 | 17.2 L/100 km | $5,332 |
| Sierra | 6.2 L · A8 | 14 L/100 km | $4,340 |
| Sierra 4WD | 4.3 L · A6 | 12.5 L/100 km | $3,875 |
| Sierra 4WD | 4.3 L · A6 | 18 L/100 km | $5,580 |
| Sierra 4WD | 5.3 L · A6 | 13 L/100 km | $4,030 |
| Sierra 4WD | 5.3 L · A6 | 17.5 L/100 km | $5,425 |
| Sierra 4WD | 6.2 L · A8 | 14.2 L/100 km | $4,402 |
Watch this vehicle
Recall letters go to whoever owns the car on paper, which may not be you. Save your 2015 GMC Sierra and we will email you the day Transport Canada issues a new recall for it.
Source: NRCan — Fuel consumption ratings; Provincial price table. Data current as of 2026-08-10. Consumption figures are NRCan’s published ratings. Prices are annual provincial averages, hand-maintained and marked as estimates — Hand-maintained annual averages, not a live feed. Electricity is all-in residential (energy + delivery + regulatory riders); gasoline is regular grade. Override them with your own numbers in any tool.