2016 Ford 250, 350 Super Duty
I am seriously thinking about getting a new truck. I have a 7.3 Ford right at the moment. I like the truck very much but it's getting a little long in the tooth.(kind of like the owner) I have been lo...
Forum Discussion
Lynnmor wrote:4x4ord wrote:
We had a 2010 Duramax and 2011 F350. We traded them in on two 2016 F350's. The 2016 has a much better exhaust brake but the '11 did better on fuel. If I could do it again I would have got King Ranches with the 3:31 gears instead of the Platinums with the 3:55's. The 3:31 gets much better fuel economy. (I believe it is tuned different, because the rpm difference that the two trucks run at is minimal .... 3:31 with 18' rims vs the 3:55 with 20's.)
The difference in tire diameter is the reason for the different gearing. There should be no difference in fuel usage. The snow plow preparation package will get you the 3.55's with 18" tires, that is the best option for heavy towing.
You're right there should be no difference in the the fuel usage, but there is. There is a big difference in fuel economy between the the 3:31 gears and 3:55 that is why i believe there is a difference in the factory tuning between the two trucks. It is interesting that in the owners manual the expected range of how far the truck will travel on a tank of DEF is given. The range given for the 3:31 equipped pick-up under normal driving conditions is: 7100 - 9600 miles. The range given for 3:55 equipped pick-up is 5800 - 8100 miles.
