Hi,
A couple of weeks ago, I did Chicago to near Grand Junction, CO, with my '09 LMM.
Actual calculated fuel economy on the last two legs of this trip (topper on truck, cruise control on 65, short stop-off tooling around in Denver), was right at 20 mpg. I know from prior trips that running without the topper costs me about 1.5 mpg on this same route.
FWIW.
Rich Phillips
Member #27
2019 K-2500 Crew Cab Z71
Cedar Creek Silverback 33RL Fifth Wheel
In The Past: '82 6.2 Jimmy Blazer, '93 6.5 GMC K-2500, '01 DMAX K-2500, '09 DMAX K-2500
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