What kind of hwy mileage are people getting?
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01-04-2019, 08:28 PM
Join Date: Dec 2017
Roughly 1500mi on truck; cruise control set at 80-85 on long stretches of an 1100mi trip, I saw 15.5-15.7mpg.
2018 GMC Crewcab All Terrain HD L5P
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