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...
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The mileage didnt change on ours. It was good from the get go and when i got rid of it, it was still getting the same. You can buy them well below msrp, ours was 72 and some change msrp and i paid 63.
