14-16 mpg 2004 6.0 - Ford Powerstroke Diesel Forum
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post #1 of 31 Old 04-11-2011, 09:38 AM Thread Starter
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14-16 mpg 2004 6.0

Allright so im getting about 14-16 avg mpg i drive it to work and back at 80 to 90 its a STD cab longbed stock tires and straight pipe is the only thing done to it. I put power service cetane boost in it with every tank and fill up only at truck stops due to the amount of feul that goes in and out of them. About 2 weeks ago i reset the computer to see if i could get any better mileage out of it but all that happened is that it seems to idle lower and lost a dramatic amount of power especially at 80.
Thanks Jbb
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post #2 of 31 Old 04-11-2011, 10:04 AM
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Can't comment on the loss of power but the MPGs it is what it is. Buy a beater to commute in if you can.

Brian


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post #3 of 31 Old 04-11-2011, 10:15 AM
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Yea, I just got 16 mpg going 80-85 back from NC. These trucks seem to drink over 65. Your top end will NEVER be as quick as your low end. Drive a 6.4, totaly different top end.

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post #4 of 31 Old 04-11-2011, 10:18 AM
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How did you reset the computer?
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post #5 of 31 Old 04-11-2011, 10:23 AM
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i reset them with a code reader

2004 FX4 CC w/zf6 ! <><
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post #6 of 31 Old 04-11-2011, 10:33 AM Thread Starter
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Taking the battery cable off...
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post #7 of 31 Old 04-11-2011, 10:33 AM
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I have a few questions. What is your gear and what is your tire size? The Kiss of Death on a 6.0 is 75 mph if you are running 3.73. It will take a Intake system and min of 4 inch exhaust to help mpg.

2013 Ford F350 4X4 6.7 Powerstroke. 3:55 Gears Electronic Locker. Mods - Full Delete, H&S Mini Max Running SPE HotX, S&B Cold Air Intake, SPE Electric Axle Lock, H&S CAC Tube Mod,
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post #8 of 31 Old 04-11-2011, 10:39 AM Thread Starter
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Stock exhaust size (3.5") and 235x85's and 3.73 gearing
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post #9 of 31 Old 04-11-2011, 12:32 PM
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The 108 MM (4.25) works best. We take and cut the Cat so the 108 MM pipe slides through the cat and then re-weld. We also recommend the Volant air intake because it is 100% cold air. Also cutting the header panel and installing a screen ahead of the intake. Both of these will help with mpg. You have the best stock gear for mpg. Pen to paper and not a dash computer is best for calculating mpg. It never lies. I'm sorry but all this cost money but should help. If you are like me 75 MPH will never happened.

2013 Ford F350 4X4 6.7 Powerstroke. 3:55 Gears Electronic Locker. Mods - Full Delete, H&S Mini Max Running SPE HotX, S&B Cold Air Intake, SPE Electric Axle Lock, H&S CAC Tube Mod,
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post #10 of 31 Old 04-11-2011, 12:34 PM
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Also if you are interested I can send you pictures of the EGR Delete we do that will cost you under 50 bucks if you want. Dan

2013 Ford F350 4X4 6.7 Powerstroke. 3:55 Gears Electronic Locker. Mods - Full Delete, H&S Mini Max Running SPE HotX, S&B Cold Air Intake, SPE Electric Axle Lock, H&S CAC Tube Mod,
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