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| 1999 to 2003 7.3L Power Stroke Diesel 7.3L Power Stroke Diesel equipped Super Duty and Excursion. |
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#11
Tue, December 13th, 2011, 10:57 AM
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alrght just filled up again. my overhead display was reading that i averaged 18.3 mpg. my hand calculated mpg is 17.5. so it is off by a little more than half a mpg. not to bad. and that is also a 1 mpg improvment over stock. that was mostly all in the 65hp dd tune. this tank will be all in the 80hp dd tune and will also be a 1800 mile round trip from northern michigan to memphis tn. not towing anything and probly oing to average 70 mph so we'll see...
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#12
Tue, December 13th, 2011, 12:37 PM
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Mine does best if I keep the rpm under 2000, that's about 68 mph in my truck
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2000 F-250 SCLB 2wd 7.3 auto PHP stock-65t-80dd-120race-high idle-no start 4"tb exh, wicked wheel, 3 guages, AIS, coolant filt,
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