2024 Yukon Denali Xl Mpg. All trim levels of the 2024 yukon xl get 16 mpg, with 15 mpg in the city and 18 mpg on the highway.  — for example, the 2013 gmc yukon xl 2500 k slt trim model has a combined gas mileage of 12.5 miles per gallon, while the 2021 gmc yukon xl slt has a combined gas mileage of 24 miles per gallon.

2024 gmc yukon xl review and find specs, pricing, photos, compare trims, and explore local inventory by verified gmc dealers at carweek.com. View detailed gas mileage data for the 2024 gmc yukon.