Sheepdog78ExplorerApr 09, 2019Duramax L5P Fuel MileageAnyone have any real world experience with the fuel economy of the new GM L5P Duramax in a 3500 DRW?
Fred_BExplorerApr 14, 2019I just pulled a 40 Aline to the Texas gulf and back computer showed 1 or above the whole trip
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