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Old 06-16-2011, 04:37 PM
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dumb question about towing

my 2011 f250 got about 12 mpg towing a 39 ft 5th wheel, 13,000 lbs, downsized to a 28 ft 7600 5th wheel. It still gets about 12 mpg at the same speed ie 64 mph. I would have thought that with the less weight I would have gotten better mpg. Am I just stupid to think so??????? have 16000 miles on the truck. btw the rig in my signature block is my old truck.
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Old 06-16-2011, 04:47 PM
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When it comes to pulling trailers it's not really the weight as much as wind resistance. If you are going to pull a tall camper it makes little difference if its 39ft or 13ft it has the same wind resistance.
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Old 06-16-2011, 05:01 PM
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Also if there is a head or cross wind. Wind kills my mileage
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Old 06-16-2011, 06:07 PM
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I understand the winds etc. I'm talking about under the same conditions.
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Old 06-16-2011, 11:51 PM
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under the same conditions, wind resistence being equal...mileage will be identical...
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Old 06-17-2011, 12:24 AM
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Quote:
Originally Posted by richc22a View Post
under the same conditions, wind resistence being equal...mileage will be identical...
He is right on, I pull 5th wheels all the time and it's very little different in
mileage from one to the next. NUWA used to make 5th wheel RV, called
a Snowbird and it had what was called a Bull nose and it pulled great,
don't know why they don't bring the Bullnose back. Enjoy the new truck.
Doug
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Old 06-18-2011, 06:52 AM
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I went from an 11000 lb 30 foot fiver to a 15000 lb 34 foot and actually gained .5 mpg. I attribute that to the fact that the heavier trailer uses G rated tires that run at 110 psi.
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