the Traverse consumed 17.0 L/100 km while driving around town, and 12.2 L/100 km during a 500-km highway trip
While I do not doubt that the autos.ca reviewers dutifully report observed fuel economy, I am always astounded by just how poor the reported results tend to be. I do better in my full-size pickup without heroic efforts to hypermile. Inefficient driving habits and/or poor driving conditions have to be at play here.
You know, when you are driving around in somebody else's car burning somebody else's gas, there is little disincentive to keep from stomping the go pedal. I also note most of the reviewers here are of a rather young age and I know I drove a lot harder in my 20's and 30's than I do now.
Whenever you see observed fuel consumption figures from a buff-rag, always see it as a worst case. Heck, many buff books don't even report observed fuel economy anymore. Probably makes the manufacturer's fictitious claims look bad.
I'm 37, I pay for my own fuel, and I drive press vehicles like any normal 'owner' would. Light throttle during take-offs, and driving at posted speed limit. Occasional bursts of speed here and there to test out the powertrain's output and torque spread, but usually 95% slowpoke driving.
Fuel economy obviously worsens in winter driving conditions, that's why I specified a "snowy test week" in the article. I have acheived slightly better results in the past aboard GM's Lambda crossovers (Traverse, Acadia, Enclave, Outlook) but for the most part, fuel consumption was always a concern, summer or winter.
As for the manufacturer's fuel economy claims, they are obliged to publish city and highway ratings based on Natural Resources Canada's established test procedures. The highway rating is based on a simulated drive at an average of about 77 km/h... so even at a constant speed of 100 km/h on the highway, you technically can't match the published highway rating.