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?
pcm1959ExplorerApr 10, 201919-21 solo in FL. 8-9.5 towing 15400 lb. fiver @70 mph in the SE USA. Truck performs very nicely!
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