Silverado 2500 v 3500 fuel mileage ?
Like we buy these for fuel saving but . . . Has anyone who's owned both noticed any difference in fuel mileage between a Duramax in a 2500 and a Duramax in a 3500 frame?
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I would think that they would be the same for the 2500 and 3500 SRW and a little less for the 3500 DRW. I get 11.5 pulling my '32 5th wheel.
