Question: are gmc yukons good on gas?
Answer: The improvements bring us to 16 miles per gallon city, 20 mpg highway and 18 mpg combined for the 2021 Tahoe and Yukon in 2WD and 4WD guises with 5.3-liter V8, and 15/19/17 mpg for the Suburban equipped with 4WD. The 2WD Suburban returns identical fuel economy estimates to the Tahoe.