2025 Yukon Xl Diesel Mpg. All trim levels of the 2025 yukon xl get 16 mpg, with 14 mpg in the city and 19 mpg on the highway. For drivers seeking maximum efficiency, the diesel engine emerges as the top choice, boasting an impressive 21 mpg in the city and 27 mpg on the highway.
For drivers seeking maximum efficiency, the diesel engine emerges as the top choice, boasting an impressive 21 mpg in the city and 27 mpg on the highway. Diesel fuel engine with displacement: