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Chevy/GMC Duramax 07.5 -10 LMM Discussion of Chevy and GMC Trucks with LMM Duramax Turbo Diesel Engines

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My dad just bought a 2008 Chevy duramax for like pulling trailer on long hauls, and me and him noticed that it gets terrible mileage pulling vs. his 04 dodge diesel. I was wondering if theres any kind of good programmer or chip to put ... JOIN NOW TO REMOVE TRACER

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Old 03-25-2013, 08:30 PM
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My dad just bought a 2008 Chevy duramax for like pulling trailer on long hauls, and me and him noticed that it gets terrible mileage pulling vs. his 04 dodge diesel. I was wondering if theres any kind of good programmer or chip to put in his duramax to help out his mileage. Its fine for power. He wants to leave everything else as close to stock as possible tho. Any suggestions??? Thanks

B Boyce's Sig:2002 Ford F-250, 7.3L Diesel, 4in MBRP Exhaust, Ranchhand bumper replacement, 285/75/R16 Cooper Discoverer ST.
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Old 07-31-2013, 12:01 AM
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425 views and not 1 post? is this site a ghost town now or what? did nobody have a recommendation for this guy? the problem you are going to have with your lmm is the dpf eats fuel during regen and lowers your fuel economy drastically, Banks makes some legal tunes that should increase your mileage without removing certain smog/federal equipment. and intake and dpf back exhaust is recommended for those.
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Old 07-31-2013, 02:29 AM
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the problem is that this site has a lot more Ford and Dodge guys then Duramax guys. there are only a few of us helping out the Duramax guys so some of them get missed.

as for power, economy or drivability nothing beats a custom EFI Live tune.

2004LB7's Sig:2008 LMM Duramax 3500HD Dually
EFI Live, DPF fell off
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Old 08-09-2013, 09:22 PM
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Thanks for help guys. I'll see what my dad wants to do
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Old 08-10-2013, 06:37 AM
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Open that puppy up. aFe Cold air intake, MBRP exhaust 5" and a good tuner since your wanting to gain more MPG's then I recommend you go with the Duramax Duramileage EZTuner. This company actually guarantees you'll see a change. They stand by their products 100% and will put their money were their mouth is. Or like one of the guys said above, Efi Live is another great option, if you got the $$$ for tunes.

---AutoMerged DoublePost---

Originally Posted by 2004LB7 View Post
the problem is that this site has a lot more Ford and Dodge guys then Duramax guys. there are only a few of us helping out the Duramax guys so some of them get missed.

as for power, economy or drivability nothing beats a custom EFI Live tune.
Yeah, well I'm glad I am apart of this site now. I deal with them all. Every diesel has their issues. I'm a 19 year old future student of NADC. I've been studying diesels since I was 14 years old. I know them like the back of my hand. I always sit here take notes, and pound everything I need to know about these new engines. Because I am soon opening my diesel shop in Crossville, Tn. So I gotta haha.

TheyCallMeCountry's Sig:1999 Dodge 2500 4x4 5 Speed manual 24v Mods: Fabtech 3" lift, aFe Stage II Cold-Air Intake, BD Power-Performance Intake Manifold, Edge Juiced/Attitudes Tuner, MBRP 5" to Axle Dump 10" Tip, Industrial Injection 6 X .016 Injectors, 150GPH Fass Lift Pump, Stock Rims, Nitto Terra Grappler 35s

Last edited by TheyCallMeCountry; 08-10-2013 at 06:37 AM.. Reason: Automerged Doublepost
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Old 10-16-2013, 12:07 PM
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Bully dog has some good tuners If he hauls alot id try efi live so he can unhook from a trailer and just flip it to fuel economy and go back to stock or whatever tune you want on the go.
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  #7  
Old 10-17-2013, 12:09 PM
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Originally Posted by B Boyce View Post
Thanks for help guys. I'll see what my dad wants to do
hypertech helps a lot (programmer) to get better yet a better exhaust and dpf delete.
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