F-550 mileage - Ford Powerstroke Diesel Forum

 
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post #1 of 6 Old 03-03-2011, 07:15 AM Thread Starter
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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!

'08 F-250 Lariat 4x4 CC SB, Toyo MT's 35/12.5/20's, S&B intake, DPF/Cat delete, H&S Mini Maxx
'08 GMC Yukon Denali 6.2 AWD
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post #2 of 6 Old 03-03-2011, 08:10 AM
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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.

2012 F350 XLT CCLB 4x4 6.7

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post #3 of 6 Old 03-03-2011, 08:26 AM
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DPF is killing it.
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post #4 of 6 Old 03-03-2011, 08:59 AM
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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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post #5 of 6 Old 03-03-2011, 09:02 AM
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Its got several factors killing it and gearing is just one of them.



2012 F-150 CC/SB 4x2 Lariat

2005 F-250 CC/LB 4x4 Lariat (Blue/Tan)- Traded In

2005 F-350 CC LB 4x4 Lariat (DSM/Tan) ---> RIP 7/16/2010 (Stolen)

1995 F-350 F-350 CC LB 4x4 XLT

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post #6 of 6 Old 03-03-2011, 10:05 AM
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Now... were you guys running the A/C? Because that's a mileage KILLER right there.

Chris | 2005 F-250 RCSB | "Ranger - Turbo Diesel V8"
CED Compounds - Conventionals - Supporting Mods
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