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Pickups Diesels Diesel Fuel Economy and chips
384 messages, Last post on Apr 04, 2009 at 8:28 AM
You are in the Diesels Forum. Your Host is kcram
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
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Replying to: dolphin1963 (Mar 04, 2008 10:54 pm) |
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Replying to: dolphin1963 (Mar 04, 2008 9:29 am) 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 |
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Replying to: dolphin1963 (Mar 04, 2008 9:29 am) thanks |
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Replying to: dolphin1963 (Mar 04, 2008 10:54 pm) is that on the 6.4 and how big of a job is it and did anybody else did it |
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So I'm still waiting for some feedback from [dolphin1963], just wondering what happened to you buddy. Also, does anyone have any knowledge about the Edge Juice with Attitude on the 7.3L? I talked to one guy who is selling his Edge Juice with Attitude because he is getting a newer truck and he claims he leaves it on level 5 all the time a gets 22mpg on the highway and around 16-18 in the city. Can anyone confirm or deny that, or is he just blowing smoke? Thanks, saeiden
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Replying to: saeiden (Mar 24, 2008 7:01 pm) I set the cruise control on 70 for my test run. Joe |
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| No matter what I do city or highway I seem to get only 4.1 MPG. Does anyone have any suggestions. Others tell me I should be getting 17 or better unloaded. What possible causes might there be particularly on the highway. I know I can increase the air filter and exhause as well as retune the PROM, but there must be some other cause before I make other changes. | |
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First off Mr.jsticher you need to go to the Ford dealer and have them diagnose your truck and then have them send the specs to a dealership near Mr. dexlhill. jsticher, if you would do all of us a favor and keep tracking your MPG using hard numbers and a calculator (the mileage displayed by truck really is not that accurate, if yours is lucky you). If I could ask you to do a little more work I'm curious just how much better your mileage is because of the Edge Evolution. Would you be willing to run a tank on stock settings to find out? This is the only way for any of us to get a really understanding of what works, thanks. dexhill, all I have to say is WOW! I've never heard a 7.3L getting such poor mileage.... feel for you man. I'm getting around 12MPG right now with my 1999 7.3L and I'm feeling it I can't imagine how tick off you must be. You didn't mention if you just got the truck or if you've had is a while and it has always been like this or if it just started lately. Having a 4:10 rear end like mine vs. 3:73 rear end like our buddy Mr. jsticher does make a difference but not that significant. My truck for example will never see 22MPG because of my 4:10 rear end, however I might get up to 18 by the summer with some of the mod's I'm planning (air intake, exhaust, and programmer). Sounds like you have something very wrong with you truck to be getting that kind of mileage. I would recommend getting professional help. Is you Catalytic converter plugged? Is you truck unusually loud even for a 7.3L? If so you could have injector/ regulator problems. Does your tranny slip? If so your torque converter is probably bad. A bad converter won't lock up after 45Mph and your tranny will be running continually in fluid drive. The transfer rate of power from you engine to your drive line is around the mid to upper 80% where as the converter locking up gives you 100% transfer of power. I certainly hope you figure it out, either way it sounds like you will be spending some money to solve the problem. You can't afford not to figure this out sooner rather than later. Good luck. saeiden |
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Replying to: jmh577 (Jan 21, 2008 10:27 am) (P.S. - my best towing mileage is - at best - about 60% of my "non-towing" mileage, but this is highly variable because I do not drive on the same terrain with the trailer as without; let alone the same speed!)
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