2016 GMC Canyon Duramax MPG Test
This little grocery getter gets a 31 mpg on a 100 mile test. Not too shabby. Don't know the towing/GCWR spec on these so I really don't know if it's a viable puller. Link
Forum Discussion
Trailer life did a test on one these with the diesel in their latest edition and they complimented the engine pretty highly. Said they crested all the hills at 55 mph and they were pulling something like 22' trailer. Don't remember the weight of the trailer though.
