My MPG needs HELLLLLLP! - Ford Powerstroke Diesel Forum
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post #1 of 7 Old 04-18-2011, 12:10 PM Thread Starter
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My MPG needs HELLLLLLP!

I just bought a 2005 6.0 King Ranch 4x4 with 55,000 miles and it is as stock as they come. I mainly do city driving ive been getting 9.6- 11.7 mpg, i read all these other guys are getting 15-17 in the city, i want that! shouldn't i be getting that with my factory settings?? do i need mods?
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post #2 of 7 Old 04-18-2011, 12:17 PM
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Are those numbers hand calculated or are they off the dash read out?I get about 13 city if i keep my foot out of it. 18 highway. An EGR delete would help a little. My mods are listed below, and I'm running the Extreme Street tune.

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post #3 of 7 Old 04-18-2011, 12:20 PM
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Yours do seem low. I average about 14.5 mpg with a 50/50 mix of city and highway. I haven't heard from any trustworthy source about getting 15 mpg with just city mileage.

An exhaust and custom tune will definitely help.

06 F250 FX4 Lariat, 35" Nitto Terra Grapplers, 6" Lift Leveled w/Bilsteins, 4" MBRP TB Exhaust w/Cat Delete, Edge Insight w/EGT Probe & Dash Pod, SCT X3 w/SRL Tune From Matt @ Gearhead, Powerslot Rotors, Hawk Pads, Upgraded Oil Cooler Screen, Upgraded Turbo Drain Tube, Upgraded STC Fitting, Upgraded FPR Spring, CAT ELC Coolant, ARP Head Studs, Opti-Lube XPD, Coolant Filter, 45K Miles
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post #4 of 7 Old 04-18-2011, 12:31 PM
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im mostly city too, i get about 10-11mpg. i wish i could get more but dont know if there is anything that will help besides a 1/2 mpg here and there. mods in sig.

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post #5 of 7 Old 04-18-2011, 12:54 PM Thread Starter
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Quote:
Originally Posted by cyclonestroker View Post
Are those numbers hand calculated or are they off the dash read out?I get about 13 city if i keep my foot out of it. 18 highway. An EGR delete would help a little. My mods are listed below, and I'm running the Extreme Street tune.
thats my calculations, the truck reads 11.6 but my last fill up is when i calculated the 9.6
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post #6 of 7 Old 04-18-2011, 01:00 PM Thread Starter
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Originally Posted by mah77 View Post
Yours do seem low. I average about 14.5 mpg with a 50/50 mix of city and highway. I haven't heard from any trustworthy source about getting 15 mpg with just city mileage.

An exhaust and custom tune will definitely help.
your getting 14.5 and you have a lift! im extreemely jealous! thats my target is 13-14 in the city 18 on the highway, you think an exhaust and programmer will do the trick?

Next ? i love how quiet my diesel is, can you recommend an exhaust system that will stay relatively the same noise level?

I was also told a cold air intake would help, thoughts?
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post #7 of 7 Old 04-18-2011, 01:13 PM
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Better milage comes from taller gears, 370's are for the most part what comes with a stock 2005 but it may have been ordered with 4's check your build sheet if you have it or mark the drive shaft and wheel to figure it if you don't. 18 or so comes from as high as 340 gears. mine has 370's and gets 11/12 city 17 or so freeway and 13/14 pulling my boat, but I drive ez too, 4.50 / gal for fuel plain suks
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