Re: 4 cyl vs 6 cyl
We have a 2012 6cyl 3L 3500 GVWR 11,030 lb EB high roof 170" Sprinter. I would not mind a smaller engine as we pass semi's on hills all the time. I also would not mind better than highway 18 mpg, 17 mpg overall. We have lots of heavy things like the diesel generator, 40 gal fresh water, and lots of storage, and our weight loaded is 10,900 lb! Not sure how you will keep the weight down to 7400 lbs.
David
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Savanna 2020 Sprinter EB 3500XD 4x4 lithium
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