GMC Sierra 3500 diesel dually MPG
I’m thinking about buying a truck and a 20k 5er, and wanted to get an idea of mpg. If I’m traveling on the highways at 65 mph, do you have an idea on the mpg I might get. I’m hoping others have a ...
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We towed our 16K trailer with a 15 GMC Dually Denali for 3 1/2 years. We rarely averaged under 10 but never more than 11. We did several 5 to 6K mile trips with it so that was under all kinds of conditions.
