Fuel Mileage - Ford Powerstroke Diesel Forum
6.4L Performance Parts Discussion What has or has not worked for you?

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post #1 of 8 Old 02-16-2011, 12:16 PM Thread Starter
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Fuel Mileage

What should I be getting? 08 CC 6.4L with 325x60x20 Nitto Terra Grappers on 20x8.5 KMC XD Spy Wheels. No lift. I went from about 13mpg to 8-9 mpg.

Plan on buying a programmer ASAP. What should I buy? I tow a 16 ft trailer with fourwheelers and a 22 ft Wakeboard boat that weighs about 4K lbs.

Any info will be greatly appreciated.
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post #2 of 8 Old 02-16-2011, 12:50 PM
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H&S tuner, 4" or 5" exhaust, and an AFE or S&B intake. Theres a ton of info here, do a search and you will have reading for days. Feel free to give us a call if you have any questions.



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post #3 of 8 Old 02-16-2011, 01:31 PM
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Mods - Spartan tuned via laptop, 4" AFE stainless exhaust system, 2.5" PMF BMC leveling spacers, 3" PMF lift blocks, Fox Racing 2.0 shocks, Recon smoked mirror & cab lights
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post #4 of 8 Old 02-16-2011, 02:00 PM
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Quote:
Originally Posted by wrightcj View Post
What should I be getting? 08 CC 6.4L with 325x60x20 Nitto Terra Grappers on 20x8.5 KMC XD Spy Wheels. No lift. I went from about 13mpg to 8-9 mpg.

Plan on buying a programmer ASAP. What should I buy? I tow a 16 ft trailer with fourwheelers and a 22 ft Wakeboard boat that weighs about 4K lbs.

Any info will be greatly appreciated.
What are you basing your mpg off of? Did you get the speedo recalibrated or using a gps? I ask because if you changed tire size your odometer and speedo are off. I was showing some crazy numbers from the lie-o-meter in the dash but had no idea until I got my speedo working right.

2009 F250 Lariat CC/SB SRW
Icon 2.5 Leveling Kit
37" Toyo MT
Line-X
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post #5 of 8 Old 02-16-2011, 04:28 PM Thread Starter
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The truck hasnt been calibrated or anything yet, so I know the numbers arent accurate. Just wanted an idea from all the experts on what I should be getting.
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post #6 of 8 Old 02-16-2011, 05:24 PM
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Originally Posted by wrightcj View Post
The truck hasnt been calibrated or anything yet, so I know the numbers arent accurate. Just wanted an idea from all the experts on what I should be getting.
I asked because you said you lost almost 5mpg and that doesn't sound right. I lost about 2mpg going from my stockers to 37's on the factory 20's. Given my daily driving routine I'm getting about 13mpg. That's a 18 mile run from my house to base doing 60mph and the little bit of driving I do around town getting the kids from daycare and putting around base. My truck is stock.

2009 F250 Lariat CC/SB SRW
Icon 2.5 Leveling Kit
37" Toyo MT
Line-X
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post #7 of 8 Old 02-16-2011, 06:16 PM Thread Starter
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Yeah, mine really dropped off alot. What do you do in the Air Force? Where are you stationed?

I talked to a diesel performance shop here today and think Im going to go with the H&S Black Maxx, 5" exhaust from the turbo back and an intake.

Dont think I need all of that, but for around $1700 installed for all of it, dont think its too bad of a deal.
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post #8 of 8 Old 02-17-2011, 04:15 AM
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Originally Posted by wrightcj View Post
Yeah, mine really dropped off alot. What do you do in the Air Force? Where are you stationed?

I talked to a diesel performance shop here today and think Im going to go with the H&S Black Maxx, 5" exhaust from the turbo back and an intake.

Dont think I need all of that, but for around $1700 installed for all of it, dont think its too bad of a deal.
C5 Loadmaster / Dover AFB

2009 F250 Lariat CC/SB SRW
Icon 2.5 Leveling Kit
37" Toyo MT
Line-X
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