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Diesel Fuel Economy and chips

391 messages,  Last post on Oct 28, 2009 at 4:28 AM

You are in the Diesels Forum. Your Host is kcram

What is this discussion about? Ford F-250 Super Duty, Chevrolet Silverado 2500HD, Dodge Ram Pickup 2500, Ford F-350 Super Duty, Chevrolet Silverado 3500, Dodge Ram Pickup 3500, GMC Sierra 2500HD, GMC Sierra 3500, Fuel System, Performance Mods, Fuel System, Diesel, Fuel Efficiency (MPG), Truck


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#299 of 391
Re: 2008 Ford 6.4 Diesel fuel MPG? [ford4me] by kcram HOST
Feb 29, 2008 (2:43 pm)
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Replying to: ford4me (Feb 28, 2008 7:16 pm)

Try these current discussions for that info:
 
Ford F-Series Real World MPG Numbers
2008 Ford Super Duty
 
kcram - Pickups Host
#300 of 391
Re: 2008 Ford 6.4 Diesel fuel MPG? [ford4me] by pipfindr
Feb 29, 2008 (7:43 pm)
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Replying to: ford4me (Feb 28, 2008 7:16 pm)

I have 4 friends who have bought an '08 f350 most have crew cab short box. they get 8 to 9 mpg. All regret giving up their 06 and 07's if you can find an 07 you are way better off
#301 of 391
Re: Diesel Fuel Economy and chips [pickupwbb] by dolphin1963
Mar 04, 2008 (8:29 am)
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Replying to: pickupwbb (Mar 30, 2005 11:27 am)

hello,
i own a 2000 f250 4x4 with 7.3l and 3.73 gears, i have made some changes like a 4" no exaust,k&n filter and a tuner with three settings , 30 70 and 105 hp.i was getting about 18.5 empty, after some research and some trials i came up with some changes in my fuel rail,and a week ago i bumped mine to a whopping 26mpg,i am working on a turbo spool wheel that will draw more air and i think that will increase 2 to 4 more miles per gallons, if you are interested in my changes i will be happy to help you, david
#302 of 391
Re: Diesel Fuel Economy and chips [dolphin1963] by pipfindr
Mar 04, 2008 (6:50 pm)
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Replying to: dolphin1963 (Mar 04, 2008 8:29 am)

tell me more.... what did you do to the fuel rail?
#303 of 391
Re: Diesel Fuel Economy and chips [pipfindr] by dolphin1963
Mar 04, 2008 (9:54 pm)
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Replying to: pipfindr (Mar 04, 2008 6:50 pm)

after i read so much about the fuel pressures in the 7.3l and ford is the only one who has introduced a pressurized fuel rail, it is starving #6 and #8 injectors,that is why they make more noise than other diesels, what i did is installed a pressure regulator and got rid off three of the check valves, not only it got substantially quieter but it has better acceleration,since the fuel is better atomized,.and got 8 mpg.
#304 of 391
cold air intake by alaing
Mar 05, 2008 (6:08 pm)
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I have a 2008 f-250 super duty with 6.4 diesel twin turbo if I put an afe cold air intake filter will it void my warranty from ford motor
#305 of 391
Re: Diesel Fuel Economy and chips [dolphin1963] by mountainman8
Mar 08, 2008 (5:35 am)
Reply

Replying to: dolphin1963 (Mar 04, 2008 9:54 pm)

Have you spoken to ford about these modifications and the ramifications? How long have you been driving with these mods? I have the noise you spoke of and all I found out was a short in the wiring harness. New harness, same noise. I am planning on installing a chip in the near future. I would like to know more details on where the check valves are located and where I can get a pressure regulator and the installation specifics.
#306 of 391
Re: Diesel Fuel Economy and chips [dolphin1963] by saeiden
Mar 10, 2008 (7:15 pm)
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Replying to: dolphin1963 (Mar 04, 2008 8:29 am)

dolphin1963,
    I'm a new member myself, I became one tonight after reading your post about increasing you MPG an additional 7.5 MPG. I am very interested in knowing how you did this especially because I payed $3.79 per gallon this evening for some of the green stuff.
 
    I have a 1999 F-250 7.3L, 4x4 Crew Cab Lariet edition with 4:10 gears (not as good as yours for millage I know but I am hoping to squeeze a little more out of her). The only mod I have right now is stock size K&N filter, which does help a little. I would love to put a lot of mods in her but the money is tight and from what I have read so far I'm not seeing a lot of bang for the buck in a new air intake, exhaust, and chip alone.
 
   I've had my beauty coming up on three years now and pretty soon the original exhaust will have to be replaced after 186,000+ miles on it. She's plenty broke-in.
 
I am interested and would like your help.
 
saeiden
#307 of 391
Re: Diesel Fuel Economy and chips [dolphin1963] by bigredmachine
Mar 24, 2008 (6:20 am)
Reply

Replying to: dolphin1963 (Mar 04, 2008 8:29 am)

i have the same truck with a cold air kit, 5" straight pipe and bully dog 6 position chip and i runs great. i am curious what you did and how easy it was and the cost of it. you get get mileage, but i cannot get that good
thanks
#308 of 391
Re: Diesel Fuel Economy and chips [dolphin1963] by gymnasia
Mar 24, 2008 (6:51 am)
Reply

Replying to: dolphin1963 (Mar 04, 2008 9:54 pm)

i see that you put all those part to get extra 8 mpg
is that on the 6.4
and how big of a job is it and did anybody else did it

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