Poor fuel mileage on a 08 6.4
#21
Registered

Joined: Apr 2008
Posts: 363
Likes: 7
From: Aledo,Texas
#22
there are many factors involved here. Tires, tire pressure, temp can make a big deal. Biggest thing is your driving habits, if you drive it like you would when not towing, its going to suck. Also take two trucks same driver, each truck is going to be a tad difference. Plus you start talking in and around town mileage.
#27
With my 6.4's I averaged 8.8 to 9.2 when I towed my 43 NT with a full load..fuel, water, and loaded truck bed with jacks, tools, etc.. Im finding with the 6.7..the new motor we are averaging 3.5 mpg better across the board on everything we tow..and way more power..
#28
Banned
Joined: Feb 2005
Posts: 9,373
Likes: 1
From: Arlington Tx
That's gonna save you a lot of money in fuel.
#29
Banned
Joined: Feb 2005
Posts: 9,373
Likes: 1
From: Arlington Tx
Not to belabor the point but this spec page shows your 5th wheel towing capacity is 18,700lbs;
http://www.new-cars.com/2009/ford/specs/super-duty.html
http://www.new-cars.com/2009/ford/specs/super-duty.html
#30
Registered

Joined: Apr 2008
Posts: 363
Likes: 7
From: Aledo,Texas
Not to belabor the point but this spec page shows your 5th wheel towing capacity is 18,700lbs;
http://www.new-cars.com/2009/ford/specs/super-duty.html
http://www.new-cars.com/2009/ford/specs/super-duty.html
http://www.ford.com/trucks/superduty...ations/towing/



