Morning:
My 2016 Yukon pulls the 17MKE just fine. Stable and no issues. Had it up to 75 just to get the feel and it was good. Would not do that ordinarily. Have now been on three trips. The first two in the flat lands, the last in the VA mountains. Pulls steady up the hills and winding roads, revs up around 3500-4000 while climbing, and gas mileage is as you would expect.
Was skeptical but now pleased. Not interested in investing in a $40,000 + truck.