better mpg???
better mpg???
Posting Guru
Joined: Sep 2007
Posts: 2,207
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From: Las vegas
He probly has rediculously high gears that defeets the purpose of having a dually and drives prodominatly down hill with a tail wind.
If you let your truck breath with a freer flowing intake and exaust that should help also a tuner with an econ setting may help. What gears do you have? that can make a huge differance.
If you let your truck breath with a freer flowing intake and exaust that should help also a tuner with an econ setting may help. What gears do you have? that can make a huge differance.
New User
Joined: Mar 2008
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thats great,my 05 350 dually 4x4 usually gets 10 no matter what,my sons 08 gets 9,my friends 06 dually 2wd gets 14 to 15, 10 pulling his 5th wheel.28 seems like a dream.I know of no ford 6.0 or 6.4 that gets any better than your getting. my son put a chip in his 99 7.4 and still only got about 12.sorry I don't know what to tell you.
Laughing Gas
Joined: Oct 2007
Posts: 990
Likes: 1
From: North Pole Alaska
The Dura Max's have been getting better fuel mileage. But 28 MPG......Did YOU believe that? Someones nose is growing.
Originally Posted by zed326
anyone know any tricks for more mpg. i have a 05 sd diesel and only get 15 on the highway. my bud just bought a dually gmc and is getting 28 hwy? what gives?
Tuned
Joined: Jul 2004
Posts: 335
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From: Las Vegas
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Posting Guru
Joined: Sep 2007
Posts: 2,207
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From: Las vegas
You know in the gmc guys defence its safe to say hes not the sharpest tool in the shed, he bought a duramax so he was probly looking at the fule milage display in cab while going down the high way and rolling off the throtle.
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Posting Guru
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Originally Posted by George D.
You know in the gmc guys defence its safe to say hes not the sharpest tool in the shed, he bought a duramax so he was probly looking at the fule milage display in cab while going down the high way and rolling off the throtle.
Senior User
Joined: Jul 2006
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Originally Posted by zed326
anyone know any tricks for more mpg. i have a 05 sd diesel and only get 15 on the highway. my bud just bought a dually gmc and is getting 28 hwy? what gives?
Typical GM Duramax is very much like the 6.0 - - Driven like an old Grandma, low teens in town, high teens on the highway.... MAYBE hit 20 mpg if you're lucky..... and you need to hold it down around 65 to get that.
Senior User
Joined: Sep 2007
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From: at Work
Originally Posted by zed326
anyone know any tricks for more mpg. i have a 05 sd diesel and only get 15 on the highway. my bud just bought a dually gmc and is getting 28 hwy? what gives?
Senior User
Joined: Feb 2005
Posts: 142
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From: wilson
i get 16 mpg on winter fuel with 50-50 driving and 19 mpg on summer blend fuel with 50-50 driving in my 04.5 dodge cummins. truck has bigger tires, about 200 lbs of gear in the truck box and a 12,000 lb winch hanging off of the front end.
