6.4l mpg?? - PowerStrokeNation : Ford Powerstroke Diesel Forum
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post #1 of 14 (permalink) Old 01-23-2010, 06:03 PM Thread Starter
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6.4l mpg??

I have a 2008 f250 6.4 powerstoke 10" lift 20" wheels 40" tires.Disply says 7.3 miles a gallon avg. Is this normal and if not what can i do to improve this?? Please help.
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post #2 of 14 (permalink) Old 01-23-2010, 06:12 PM
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Re: 6.4l mpg??

With that big of lift and tires...... yes.

Ditch the DPF and get some tunes

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post #3 of 14 (permalink) Old 01-23-2010, 06:13 PM
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Re: 6.4l mpg??

take the lift and tires off.. j/k lots of people that took the dpf off and spartan tunes got better mileage

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post #4 of 14 (permalink) Old 01-26-2010, 05:43 AM
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Re: 6.4l mpg??

Don't use the display to get your mpg. Those things lie worse than Politicians. Pull out your pad and pen and hand calculate it.

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post #5 of 14 (permalink) Old 01-26-2010, 06:40 AM
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Re: 6.4l mpg??

check it manually, And start reading the performance forumn, Dpf delete tunes pickup an easy 4-5mpg in most cases

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post #6 of 14 (permalink) Old 01-31-2010, 03:33 AM
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Re: 6.4l mpg??

My dash read out is dead on . Friend of mine has a 08 F350 dually , was getting 11-12 mpg stock . Did dpf delete with spartan tuner , increased his empty mpg to 15-16 mpg and picked up 4 mpg towing 8k camper .

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post #7 of 14 (permalink) Old 01-31-2010, 03:37 AM
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Re: 6.4l mpg??

It is trying to tell you to buy a 7.3.

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post #8 of 14 (permalink) Old 02-01-2010, 07:19 AM
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Re: 6.4l mpg??

definitely hand calculate it, (fill it till it clicks once, set to 0, drive it for how ever long u want, then fill it back up till it clicks once, then divide how many miles you drove by how much fuel you put in) . Also driving habbits have a big effect on mpg's, and yea the 40's dont help lol.

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post #9 of 14 (permalink) Old 02-02-2010, 12:12 PM
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Re: 6.4l mpg??

Did you do a gear swap? what gears are you ruuning? my nephew has an 08 harley ed. 12 inches with 40's he's getting 8.5 mpg. that ia with the stock 3.73's. you gotta pay to play...
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post #10 of 14 (permalink) Old 02-03-2010, 01:59 AM Thread Starter
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Re: 6.4l mpg??

just stock gears getting ready to change up and put a programmer and air lockers. any thoughts on this??
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