NRCan fuel consumption ratings
Where the 2019 Mercedes Benz GLS 450 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 2019 vehicle rated in Canada
18%more efficient than
Among the thirstiest. The 2019 Mercedes Benz GLS 450 uses 13.2 L/100 km combined, ranking 912 of 1117.
Within Sport utility vehicle: Standard
50%
More efficient than 50% of the 121 vehicles NRCan puts in this class for 2019.
- Best in class
- 2.3
- Class median
- 13.2
- This vehicle
- 13.2
- Worst in class
- 19
Tailpipe emissions
312 g/km
Cleaner than 14% of 2019 vehicles. NRCan rates it 3 out of 10.
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.