Just got an 08 6.4 fX4 and want to add mileage what should I do? - Ford Powerstroke Diesel Forum
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post #1 of 17 Old 01-03-2011, 09:57 PM Thread Starter
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Just got an 08 6.4 fX4 and want to add mileage what should I do?

Just got an 08 6.4 fX4 and want to add mileage what should I do?
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post #2 of 17 Old 01-04-2011, 06:44 AM
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For this and other performance related questions you'll have more luck getting responses if you post them in the General Discussion or Performance Parts section of the 6.4 forum. As for your question though, #1 would be to get rid of the DPF exhaust and get a tuner. Once you have done that the next most helpful thing is learning conservative driving techniques. With those things you will probably be looking at numbers in the high teens for mpg.

2012 F350 XLT CCLB 4x4 6.7

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post #3 of 17 Old 01-04-2011, 08:01 AM
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Remember, City driving will kill your mileage no matter what you do. If you want higher mileage, stay on the highway, soon as you drop to city driving, you can just about watch your fuel gauge dropping.

Shaun

'08 F250 6.4L Lariat 4x4 CC/SRW fully loaded, special ordered
6" Fabtech 2.25 dual shock lift w/18" AR wheels, 35" Toyo AT's
Avic-Z2 Nav/Stereo w/iPod, Bluetooth, XM NavTraffic
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Line-X bedliner
Banks CAI, Dual Exhaust, Six-Gun, Speed Brake & iQ (test vehicle)
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We went into a recession in 2008 because of gasoline prices.
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post #4 of 17 Old 01-04-2011, 08:27 AM Thread Starter
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Mileage

Thanks guys, as far as my driving style goes, I think I got that pretty much down, but what tuner do you suggest and what should I replace my stock exhaust with specifically?
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post #5 of 17 Old 01-04-2011, 08:43 AM
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I get average 23-25 mpg highway with my setup...read it in my sig.

2003 6.0 F350 dually on high cholesterol fuel (WVO)
2000 7.3 Excursion also on a high cholesterol fuel



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post #6 of 17 Old 01-04-2011, 12:30 PM
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I get average 23-25 mpg highway with my setup...read it in my sig.
Me too, it says right there on my dash.

11 F250 6.7 CC/SB -- tuned & deleted -- 3.5'' PMF/ICON/Fox suspension, Method Standards, Toyo AT2s
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post #7 of 17 Old 01-04-2011, 12:34 PM
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Me too, it says right there on my dash.
I hand calculated a 2000 miles roadtrip, 4 fillups all calculated.
The computer is olny off by 1 mpg on both my trucks.

2003 6.0 F350 dually on high cholesterol fuel (WVO)
2000 7.3 Excursion also on a high cholesterol fuel



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post #8 of 17 Old 01-04-2011, 12:41 PM
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I hand calculated a 2000 miles roadtrip, 4 fillups all calculated.
The computer is olny off by 1 mpg on both my trucks.
Are you sure you are remembering the mileage from your truck and not a Civic? Or that you didn't add 8 to your MPG after you hand calculated it?

I just have to try and pretend you are full of it for my own benefit. Because my dash is horribly off, and if I acknowledge you're telling the truth, the next time I fill up I may shed a tear...

Some trucks get great mileage and some don't for some crazy reason. There's another member on here that's getting worse mileage after the delete...

11 F250 6.7 CC/SB -- tuned & deleted -- 3.5'' PMF/ICON/Fox suspension, Method Standards, Toyo AT2s
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post #9 of 17 Old 01-04-2011, 05:54 PM
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If it's all highway and he was driving moderately, then I don't believe the 23-25 HC numbers are far off. Hell, I get around 18-19 if it's just Hwy station to station that's with a DPF and the Banks unit.

Shaun

'08 F250 6.4L Lariat 4x4 CC/SRW fully loaded, special ordered
6" Fabtech 2.25 dual shock lift w/18" AR wheels, 35" Toyo AT's
Avic-Z2 Nav/Stereo w/iPod, Bluetooth, XM NavTraffic
(2) Rear headrest mnt DVD entertainment systems
Line-X bedliner
Banks CAI, Dual Exhaust, Six-Gun, Speed Brake & iQ (test vehicle)
Bushwacker Fender Flares
Ravelco Anti Theft Device

Quote:
Originally Posted by Rick Santorum
We went into a recession in 2008 because of gasoline prices.
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post #10 of 17 Old 01-04-2011, 07:17 PM
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get rid of the dpf/cat and get a programmer

TEXAS MILE 261.5 MPH
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