Fuel consumption

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Nov 3, 2019 | 07:37 AM

#31

17 Oaks

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Joined: Jan 2013

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Quote:

Originally Posted by 67L48

Where do I get one of these "phony handjobs"? Was that part of the Lariat trim level? Can I turn this feature on with ForSCAN? Oh, please let the answer be, "Yes."

YES, you turn it on with the ForeSKIN app.

Quote:

Originally Posted by brandon4

I have a 450 with 4.30s and oversize tires. 7-8 towing the fifth wheel. 13mpg running empty under 70.

That's really about as good as as you'll see. Surprising how little enclosed trailers still suck the fuel. The drag is substantial.

Educate me, on dually's and oversize tires. Do you have an issue with the dually rears on width? What about height? I have a '20 F 450 on order, I would have opted for a 4:10 if I could have, I don't need a 4:30 axle, but I can cheat it by going to a taller tire.

Nov 3, 2019 | 11:10 AM

#32

17 Oaks

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Joined: Jan 2013

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Quote:

Originally Posted by StonedGrey

18 350 DRW 4x4 3.55s.

stock it would get 7.4mpg towing my 13,000lb 5th wheel at 70mph.
stock unloaded at 70mph = 16mpg

Fully deleted, 75hp tune, & CAI now and get 9.8mpg towing the same 5th wheel at 70mph
Deleted unloaded and get 19mpg at 70mph

ive walked RV parks and talked to dozens and dozens of 17+ SD PS about their fuel mileage while towing their 5th wheels. everyones mpg is all over the map. Guys with much heavier trailers then i have claiming 11,12,13mpg while towing. Others with lighter trailers getting worse then i do.
I think it has a lot to do with the aero drag of the trailer and not so much the weight of the trailer.

Somewhat. But mostly it has to do with my kids and dog are smarter than your kids and dog.

Wanna test the theory: Start a thread asking for mpg on Superdutys and watch how as time goes by the mpg increases until you get guys that are getting 25 mpg hauling 35,000 lbs at 80 mi an hour. You can see this in any Forum devoted to a single car group. Jeeps, Corvettes etc.

I can hit in the 20's at 70 mph. I live at 1720 El, and drove the 35-40 mi S on I 10 to about 550 EL, down hill all the way. Going back home it offsets itself, LOL.