Forum Discussion
LanceRKeys
Apr 05, 2022Explorer
ksss wrote:
My brother just picked up his GMC Denali 3500 SRW, CC/SB with the 6.6 gas. Traveling across parts of Eastern North Dakota, we got 14-15 mpg on flat roads empty. This truck would need quite a tail wind to hit 20 mpg. Very nice pickup though.
Note that the claimed 20mpg was with the cruise set below 60mph.
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