MPG??? what should i be getting??? how can i improve it??? - Diesel Bombers



6.0L Performance Discussion of 6.0 Liter Ford Powerstroke Turbo Diesels Related To Performance And Longevity

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Old 07-27-2010, 10:34 PM
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Default MPG??? what should i be getting??? how can i improve it???

I hear all my CR buddies getting in the 20's for MPG. But i get around 11.5-12.4 MPG driving in mixed conditions without beating up the skinny pedal too bad. What do you guys get so i can compare and what have you used that actually worked to boost your numbers? I plan on a programmer soon (since i just got over having a bad EGR and Oil cooler and 2 weeks later head gaskets), I just got my head studs in and still feel that i am babying it a bit out of paranoia of another Gasket blow....

My signature has the mod's i have done so far.... any advise will truely be appreciated.
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Old 07-28-2010, 06:23 AM
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I have a SCT with Erics custom tunes, I use Extreme Race as my DD. I get the best MPG with that tune. Also my truck is an 03, and the later flashes on these trucks get terrible milage. When I've been able to keep it at 65 on the highway I can get 20-21 MPG. When you go much over 65 the milage drops off. Power Hungry Performance has been reflashing with older flashes and apparently that helps.
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Old 07-28-2010, 09:06 AM
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My 05 6.0 gets 14 to 15 and I only have exhaust and hardly any highway. I pull a trailer twice a week. I could prolly get better but I'm always trying to race somebody
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Old 07-28-2010, 11:55 AM
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Around town towing a 10,000 pound equipment trailer 10 - 11 MPG (Tow tune)
Highway speeds with no trailer 16 MPG (Extreme tune)
I have custom SCT tunes by Eric, but I tend to get better MPG running an Extreme tune on the highway as compared to running a better mileage tune.
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Old 07-28-2010, 12:46 PM
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interesting how i keep hearing that the real high output tunes actually lend more for MPG aswell.... So an SCT tuner seems to be the best bet for me long run then for a tuner... then just find a tune i programer wise? Any other bolt ons that might help out as well? I will eventually add a 4 inch exhaust i think...Mine already has a damn near new stock set up underneath... so I was putting that off to get more use out of it before i rip it out.

Last edited by esetzer; 07-28-2010 at 12:51 PM.
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Old 07-28-2010, 02:36 PM
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SCT is the only way to go on these trucks, it also programs the transmission. Get custom tunes written for your truck. Do the 4in exhaust, at least dump the cat and muffler. Your stock air filter is all you need until about 500hp. you also need some guages. The big thing on these moters is maintenance, change the oil don't try to stretch your intervals and use OEM filters. change the fuel filters at every other oil change, use OEM filters. Don't baby this moter, wind it up now and then.
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Old 07-28-2010, 05:44 PM
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Thanks Papa... a bit of Trans program would be nice too i think... about once every 50 3rd-4th shift i get a slip so that might help with that. I want to add a Pyro and gauge at least. the one thing i always do is maintain what ever it is very well and usually ahead of schedual....and as for babying it... i usually get on it rather heavy time to time..just to do it... but after both coolers and head gaskets... I've been good to it... I'm sure that will wear off soon and I'll be back to over 25lbs boost soon too. Thank you for your thougths on this.
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Old 07-29-2010, 07:35 AM
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Talk to Eric about what you would like to get out of having custom tunes and he will dial in exactly what you want. Don't waste your money on a mileage tune. The tow tunes are great if your hauling a trailer.

Innovative Diesel
20 Wood Chip Rd.
Elkton, MD 21921
1-866-642-7844
Fax: 1-800-793-3175

If your getting Extreme tunes I would recommend a pyro and fuel pressure gauge also. You don't want to starve the injectors. If your towing stuff get a trans temp gauge also.
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Old 07-29-2010, 06:10 PM
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Well.... I ordered a SCT 9600 with the EGT kit and mount.... will see how it goes now once i can download some custom tunes into it.... would really like to get away from the 11-12 MPG range i seem to be stuck in...
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Old 07-29-2010, 10:16 PM
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What gears do you have with that dually and what bed/cab configuration do you have? You have a heavy rig there no doubt. I get around 15 with my extended cab short bed auto, and less when I'm driving like an idiot, which is 99% of the time.

Half the guys I know with Dodges tell me they get 20 and half of those are lying. My buddy sold his 04 6.0 (had a LOT of issues with it, but mostly his own fault) and went and got an 06 CR cummins, manual tranny big horn. The big horn does had 3.90 gears (or at least his does) so that doesn't help, but he gets like 12mpg driving easy.

SCT with custom tunes is the way to go. Did you order your programmer from Eric?

I ran X-race for a daily driver for a while and I wouldn't recommend, leave the race tune for the race track. Use the x-street which is the same power, but doesn't have the torque converter lock in 2-5. I blew a stock torque converter apart with only about 10k miles of tuning on the truck and maybe 3k miles of x-race driving.
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