F-550 mileage - Ford Powerstroke Diesel Forum
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Old 03-03-2011, 07:15 AM
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F-550 mileage



This is one of our work trucks. Just made a run from Houston to Odessa and avg. 6.5 mpg hand calculated. The gearing kills this truck!
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Old 03-03-2011, 08:10 AM
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Join Date: Jun 2009
Location: Union, MO/ Pomona, CA
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Ya I'd say it has a few things working against its mileage. Gears, weight, and it looks about as aerodynamic as a brick wall even with the spoiler on top. Oh well, at least its company fuel and not personal fuel its burning. It's a nice looking setup though.
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Old 03-03-2011, 08:26 AM
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Location: Riverside/Norco, Ca
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DPF is killing it.
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Old 03-03-2011, 08:59 AM
Compression Ignition Addict
 

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just a guess, but i'd be willing to bet that your rig weighs 12,000 lbs or so? That alone would be a mileage killer. it's probably got 4.88 gears as well. i know on mine, with
4.30s, i'm turning just over 2250rpm at 70mph.
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Old 03-03-2011, 09:02 AM
haters gonna hate 24/7.
 

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Its got several factors killing it and gearing is just one of them.
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Old 03-03-2011, 10:05 AM
Calling all Georgians!
 

Join Date: Apr 2010
Location: Middle Georgia
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Now... were you guys running the A/C? Because that's a mileage KILLER right there.
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