7.3L fuel mileage, stock vs lifted - Ford Powerstroke Diesel Forum
 
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post #1 of 10 Old 03-01-2009, 05:14 AM Thread Starter
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7.3L fuel mileage, stock vs lifted

Hey yall, I'm still undecided on 6.0 vs 7.3 for my next truck. Whatever I get, I'm planning on throwing 6 inches at it right away with 35's. Also planning on a tuner, exhaust and CAI quickly.

So now I'm wondering if you 7.3L guys could tell me what kind of fuel mileage you got on stock tires, and after lifting & big tires? Lift size & tire size would also be helpful. I guess it would also be helpful to know if you have a chip/programmer.

As always, I do appreciate any and all input. I searched on fuel mileage and got nothing helpful.

Thanks,
Cliff
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post #2 of 10 Old 03-01-2009, 05:16 AM
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I don't really recall what king of milage I got stock but when I had 8'' life with 37's... on highway driving I could get 18mpg no problem at all... and that was with a 6spd and 4.56's... and yes of course not giving it hell

RYAN
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post #3 of 10 Old 03-01-2009, 06:11 AM
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All I can say is I lost 3 mpg when i went from stock to 6" of lift and 37's. Your mileage WILL drop.

2001 F350 CC SWB 6spd......currently getting a complete makeover.
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post #4 of 10 Old 03-01-2009, 06:23 AM
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35s in mine 17-20 average

03 F350 PSD
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post #5 of 10 Old 03-01-2009, 06:37 AM
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It's going to drop, regearing will help a lot to gain some of it back.

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post #6 of 10 Old 03-01-2009, 06:23 PM
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6.5 lift on 37s. about 13..... sux i know.:do: not sure what gearing but its an auto. looking into trying to get better but not sure what to do... is the econ tune by tony really help??

03 F-350 7.3L
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post #7 of 10 Old 03-01-2009, 06:38 PM
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Yeah I like to know also I am getting 12 stock?

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post #8 of 10 Old 03-02-2009, 02:42 PM
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I am getting 14 mpg on a good day not breaking 2 grand while running the TW econ tune. Have the 7.3 sitting on 315s and 4" of lift, 5 inch exhaust, and CAI.

'02 F250 - Automatic, 4x4, S&B Intake, 5" MBRP, Gauges, Tony Wildman tune
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post #9 of 10 Old 03-02-2009, 02:49 PM Thread Starter
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Will any of the tuners/chips help fuel mileage on a 7.3L rolling on 35's? Good or bad, I will probably stay away from DP based on things I've read.

Thanks,
Cliff
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post #10 of 10 Old 03-02-2009, 02:51 PM
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ive always heard dp was good. Anyway I get bout 17-18 on the highway with the chip on extreme staying out of it and using cruise control keeping the rpms under 2k

Sam


2005 F350 King Ranch CC DRW Insight Leveled 4" MBRP Straight Pipe Tinted

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