2015 GMC Yukon XL Denali MPG (6.2L, 8-speed)
We did our first road trip last weekend in our new 2015 GMC Yukon XL Denali with the 6.2L and the new 8-speed transmission. Towed my brother's boat to AZ, no trailer on the return trip. And I was real...
Forum Discussion
Campfire Time wrote:
Thanks for posting this. I'm really intrigued by the 6 & 8 speed transmissions. My truck missed the 6 speed by a couple of years.
My dad has the Cadillac Escalade ESV with the 6.2 & 6-speed, and although it's not quite as good as my new truck (newer version of the 6.2 and 2 more gears), it's still night & day better than the old 4-speed in terms of MPG and usable power.
We've done a bunch of side-by-side comparisons between his Caddy and my Suburban before I sold it; we'll do a comparison of the Caddy to my GMC on our next trip to AZ, as neither of us will be towing.
