2025 Yukon Denali Ultimate Mpg. Find specs and features for the 2025 gmc yukon including dimensions, horsepower, engine, capacity, fuel economy, transmission, safety rating, drivetrain and more. 2025 gmc yukon specs by style.

Find specs and features for the 2025 gmc yukon including dimensions, horsepower, engine, capacity, fuel economy, transmission, safety rating, drivetrain and more. This engine returned 17 mpg overall in our tests of the 2021 tahoe.