- #92 of 503
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Re: New 2006 Duramax mileage [jmccormick1]
by kcram HOST
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Sep 22, 2005 (5:00 pm)
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Replying to: jmccormick1 (Sep 22, 2005 2:21 pm)
According to GM's press release, the new higher-output (360/650) Dmax won't be available before November.
kcram - Pickups Host
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- #93 of 503
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Re: New 2006 Duramax mileage [kcram]
by gmboy1
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Sep 24, 2005 (7:50 am)
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Replying to: kcram (Sep 22, 2005 5:00 pm)
My son works for the other guy (Ford) as a mechanic on their diesel engines. They have had a lot of trouble with their variable turbos, and guess what, GM is going to use the exact same turbo (from the same manufacture) in 06' from what I have been told. Anyone else heard about this?
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- #94 of 503
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Re: DURAMAX FUEL MILEAGE [victorycruiser]
by stoneg
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Sep 25, 2005 (5:14 am)
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Replying to: victorycruiser (Sep 19, 2005 9:42 am)
Not true. After installing BF Goodrich ko's 285.75.16, I took my '05 2500HD to the dealership who reclaibrated my speedo (at no charge). Before I put the tires on, I had a leveling kit put on (changed out the torsion bar keys). This lifted the front 2.5 inches to be the same height as the back ($275 installed). Friday I had the front shocks replaced with Blistien 5100 shocks ($250 installed). After doing the leveling kit, the shocks were extended to far, and gave a rougher ride. The new shocks make a washed out dirt road feel like a highway! Didn't turn the torsion bars at all. I did have to trim a little of the front valence to keep from rubbing though. Go with the BF's....you wont get stuck.
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- #95 of 503
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'06 DMAX
by clongwell
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Sep 29, 2005 (8:02 am)
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Under the current GM pricing I could not find anyone that would sell a DMAX with the LBZ engine. I couldn't give up the 9 or 10k off MSRP for an engine upgrade. Has anyone had experience with the 6 speed Allision Auto?
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- #96 of 503
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Re: Love my 2003 DM 2500 HD 4x4 Crew Cab [stoneg]
by aarongd
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Sep 29, 2005 (6:07 pm)
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Replying to: stoneg (Aug 27, 2005 8:03 pm)
i have read that replacing with the stock shocks with the blistien shocks is suppose to make it better. i personally have not done it. as far as fuel economy goes,it did'nt seem to make any difference before or after the lift . i have 265/75/16 tires.i get just about the exact same milage you are stating. i don't know how they are getting the milage they say they are. i've tried driving a constant 60 m.p.h and i might get an extra .5-1.0 mpg more. .one thing that i did try and is pretty inexpensive and seems to work the best is using acetone in my fuel. approx 2 ozs per 10 gallons of fuel. it seemed to bring it up around 2 m.p.g. go to yahoo search and type in acetone diesel. click the first item. big article on using acetone. try it and let me know what you think? Aarongd
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- #97 of 503
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Re: HELP! New Diesel Owner on MPG [benr]
by sleadhead44
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Sep 30, 2005 (5:29 am)
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Replying to: benr (Sep 14, 2005 3:37 am)
Benr,
Yes, I have the 5 spd. Allison Auto Trans, and I always use the tow button. I will have to try it without the tow button on to see what MPG I get. I guess I was just afraid of burning up the tranny if I didn't use it. I use cruise control alot and try not to stomp the gas pedal, I try to keep that to my race car. 
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- #98 of 503
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Re: '06 DMAX [clongwell]
by ruskand
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Sep 30, 2005 (6:59 am)
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Replying to: clongwell (Sep 29, 2005 8:02 am)
The new DMAX with the LBZ engine will start hitting the production lines next week and should start hitting the streets soon after. I just bought a 2006 with the LLY motor that has a lot of the upgrades of the new LBZ motor and it made a huge difference over my 2004. The mileage appears to have increased 3-4 mpg with the modified LLY. With the increased fuel pressures of the LBZ, this may not happen since usually more HP/Torque usually means more fuel (but who knows). Chevy wouldn't even tell me what to expect with the modified LLY.
The 6 speed seems great, shifts smoother than my 2004 did and definitely likes to go fast. I would suggest buying now and saving $10,000 and see what happens with the newer engine. Also, I hear that Bully Dog is already designing new performance parts and looking for testing people on their website.
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- #99 of 503
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Great Truck
by monteboy1
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Sep 30, 2005 (9:44 am)
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I have a 2002 2500 HD ext. cab and was wondering what common fuel mileage is? I have had an all time best at 25.4.miles to the gallon on the highway. I love the quietness of the Duramax too. Towing I have had an all time best of 17 MPG with a 6,000 pound enclosed snowmobile trailer. Just wondering how many more trucks are like this?
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- #100 of 503
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Love my DM 2500HD 4x4 Crew Cab....Hate my MPG!
by stoneg
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Oct 02, 2005 (5:48 pm)
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Replying to: aarongd (Sep 29, 2005 6:07 pm)
As for the ride...night and day. However, my mpg are at 10.5 today...I'll be hunting up some acetone tomorrow. About 5 ounces for a 26 gallon tank?
I just ordered the Edge Juice with Attitude (will be using level 1 for better mpg's, but level 3 or 4 to embarrass these kids with "tuners?" from time to time) and it will be here in about 2 weeks, and will report on its efects.
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- #101 of 503
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Re: Great Truck [monteboy1]
by stoneg
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Oct 02, 2005 (5:55 pm)
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Replying to: monteboy1 (Sep 30, 2005 9:44 am)
WOW, you must only drive WITH the wind. I couldn't get 25 mpg if I was chained to the back of an 18 wheeler!!! Some of us are getting 10 city, and 14-15 Hwy. Damn your lucky.
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