Posted 11/29/2016 06:48 (#5663882 - in reply to #5663848) Subject: RE: What kind of mpg
We have a 05 Yukon xl with the 5.3 but wished we had the 6.2 when driving in the hills and mountains. The 5.3 would shift down and up always but it does do all right for mileage. Very comfortable ride and would buy another.