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Old 06-16-2012, 02:22 PM
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Whats your gas mileage?

Hey guys just looking for some input on your 6.0 gas mileage with/without mods. Got my bone stock 05 last week and my mpg average has been horrible with at least 50-60% of my driving being highway im averaging 11.5-12.5 mpg?!?!
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Old 06-16-2012, 02:43 PM
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Stock sized tires?
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Old 06-16-2012, 02:43 PM
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Quote:
Originally Posted by lowrider284 View Post
Hey guys just looking for some input on your 6.0 gas mileage with/without mods. Got my bone stock 05 last week and my mpg average has been horrible with at least 50-60% of my driving being highway im averaging 11.5-12.5 mpg?!?!
Sounds pretty low, last week on a 600 mile trip I averaged 18.7 hand calculated with the truck in my sig (minus the mud terrains, I had the small factory ones on, looked funny but helped with the ride and mpg's lol) That being said, around town I usually average 14 or 15 with my regular 38's on. I attribute alot of that to my sct though, without it who knows what I would be getting
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Old 06-16-2012, 03:18 PM
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Quote:
Originally Posted by lowrider284 View Post
Hey guys just looking for some input on your 6.0 gas mileage with/without mods. Got my bone stock 05 last week and my mpg average has been horrible with at least 50-60% of my driving being highway im averaging 11.5-12.5 mpg?!?!
I bought my 05 last year and was my first. i thought it was a little sluggy. I am mechanically inclined on n/a but diesel is a different story. My first mod was a programer to see what was going on. Found that egt's were slightly high and eot was slightly high. mileage was running around 12-14 on freeway. truck is lifted on 35's, deep down i knew there was something wrong. drove for 3months and got worse over time 7-10 mpg's. took it dealer and the problem was #4 injector was toasted. replaced the whole side since i was in there. and vwahla 18-22 depending if i am behind someone all day long!!!! runs like a champ that was my solution may not be yours, have your injector checked around 100 bucks for scan they will tell you what one and what side
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Old 06-16-2012, 03:32 PM
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Well stock I got maybe 13 50/50 driving...really sucked and the lifted it and got about 12.5 on stock tuning. Srl tuning alone got me an average of 2/city 3/ highway once the honeymoon period was over. Currently I'm gettin 14.5 city and around 19hwy running Wildmans race tune. You can get very similar mileage with the looney wild but the Wildman gets better city mileage so I run that
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Old 06-16-2012, 03:35 PM
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My truck is an '07 DRW TowBoss with 4.30 gears and stock 245/75R17 tires:

Stock: 10-12.5 city, 13.8-14.6 interstate
IDP Street: 11-13 city, 15-16 interstate
IDP X-Race: 11-13.5 city, 15.2-16.5 interstate

Only mods that factor into the mileage for me, 5" Exhaust (3.5" DP, Cat and Muffler on board) and the SCT tuner - Studded files from IDP. Stock Air Filter.

Next on my list is an efficient MTW turbo, and some FICM tuning.

Biggest effects I find are clean fluids and filters, and driving it to save fuel. However you still need the occasional WOT run to fully cycle the VGT vanes, and clear out the intake manifold and EGR cooler (which I do about twice a week).
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Old 06-16-2012, 03:53 PM
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If i reset my mpg calculator while on the freeway its about 16-17 for my average 15 mile commute, havent reset it for just around town driving yet but maybe its that bad that it could drop it to an average of 12
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Old 06-16-2012, 03:54 PM
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Stock sized tires?
Yes stock tires
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Old 06-16-2012, 04:00 PM
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That little computer is usually way off, hand calculate it and let us know what ya get
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Old 06-16-2012, 05:14 PM
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Just did the trip home from work 10 miles off-highway and averaged 14....maybe ive been romping on it too much on my take-offs lol
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