NRCan fuel consumption ratings
Where the 1998 GMC C 2500 ranks
A number like “8.5 L/100 km” means nothing on its own. This puts it against every other vehicle rated in Canada that year.
Your vehicle
Against every 1998 vehicle rated in Canada
15%more efficient than
Among the thirstiest. The 1998 GMC C 2500 uses 16.4 L/100 km combined, ranking 534 of 632.
Within Pickup truck: Standard
35%
More efficient than 35% of the 106 vehicles NRCan puts in this class for 1998.
- Best in class
- 10.9
- Class median
- 15.8
- This vehicle
- 16.4
- Worst in class
- 20
Tailpipe emissions
377 g/km
Cleaner than 16% of 1998 vehicles.
Tailpipe only. It does not count the emissions of producing the fuel, or of generating electricity for an electric vehicle — the EV comparison does account for the grid.
How this is measured: Ranked against vehicles of the same model year, not against everything ever rated — comparing a 2004 SUV with 2026 hybrids would rank the calendar rather than the car. Where a model has several rated versions, the median one is used.
Source: NRCan — Fuel consumption ratings. Data current as of 2026-08-11. 30,784 rated vehicles, 1995 to 2026.