[scottz]

Originally Posted by enystrom

I am trading in my 2017 F350DRW with a 3.55 rear axle ratio and looking to purchase a 2019 F350DRW with a 4.10 rear axle ratio. I pull a 16000 lb 5th wheel and tow only 30% of the time. Worried about the gas mileage drop when not towing. Has anyone experienced the same scenario?

I went from a 2014 F350 with 3.55 gears to a 2019 F450 with 4.30 gears. I have not noticed a big difference in fuel mileage but the truck is to new to have much data. Engine speed only went up by about 200. If I remember correctly the F350 turned about 1800 at 65mph; the F450 turns 2000 at 65mph.