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2500 Duramax Mpg


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8 replies to this topic

#1 sbatzold

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Posted 23 June 2008 - 09:42 AM

What are you getting with your 2500 duramax for MPG?
'05 Sliverado Crew Cab, Silver matalic.
4x4 with locker, box cap, bedliner and front push bar.

#2 98silvz71

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Posted 23 June 2008 - 09:53 AM

There is already a poll about this in this forum topic.

Duramax MPG Poll

2013 Chevrolet Silverado 2500HD LT CC/SB 4x4

2012 Chevrolet Equinox LTZ AWD

2004 2500HD D/A 4x4 CC/SB - Gone But Not Forgotten
'06 Powerdome Hood and Grille | '06 Trailer Mirrors | Edge Juice/Attitude | Magnaflow 4" Turbo-Back Exhaust | Bilstein HD Shocks | BFG A/T KO 285/75/R16 | BakFlip Tonneau Cover


#3 merlin5577

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Posted 23 June 2008 - 10:13 AM

Average 18.5 combined driving. Highest ever was 22.9, lowest was 15.
Posted Image
2003 Chevrolet Silverado LS K2500HD 4X4 6.6L w/Allison 1000
K&N Cold Air Intake, Painless Performance 4-High Beam Relay Kit
1997 GMC Suburban SLT K1500 4X4 5.7L w/4L60E
PaceSetter Air Intake, ACCEL Plugs, Wires, Cap, Rotor, and Coil,
Edelbrock IAS Shocks, Painless Performance 4-High Beam Relay Kit

#4 sbatzold

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Posted 23 June 2008 - 10:38 AM

There is already a poll about this in this forum topic.

Duramax MPG Poll



Sorry, I looked quick and searched but missed that poll, thanks for the link.
'05 Sliverado Crew Cab, Silver matalic.
4x4 with locker, box cap, bedliner and front push bar.

#5 merlin5577

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Posted 23 June 2008 - 07:41 PM

What is everyone else getting for fuel economy with there Duramax?
Posted Image
2003 Chevrolet Silverado LS K2500HD 4X4 6.6L w/Allison 1000
K&N Cold Air Intake, Painless Performance 4-High Beam Relay Kit
1997 GMC Suburban SLT K1500 4X4 5.7L w/4L60E
PaceSetter Air Intake, ACCEL Plugs, Wires, Cap, Rotor, and Coil,
Edelbrock IAS Shocks, Painless Performance 4-High Beam Relay Kit

#6 DV2000NJ

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Posted 23 June 2008 - 08:15 PM

What is everyone else getting for fuel economy with there Duramax?



Try the link in post #2 :thumbs:

Posted Image
2000 Silverado 4x4
| 2006 LQ4 | 216/224 .561/.568 114 | 44lb. injectors | OBX LTs | Magnaflow Hi-Flow cats | 3" Borla XR1 | Yank TT3000 | FLT Level 5 4L65 | Lowered 2.5/4 |

Click it >>>>13.282 @ 99.96 | 1.828 60'


#7 merlin5577

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Posted 23 June 2008 - 08:19 PM

What is everyone else getting for fuel economy with there Duramax?



Try the link in post #2 :thumbs:



:D

Edited by merlin5577, 23 June 2008 - 08:24 PM.

Posted Image
2003 Chevrolet Silverado LS K2500HD 4X4 6.6L w/Allison 1000
K&N Cold Air Intake, Painless Performance 4-High Beam Relay Kit
1997 GMC Suburban SLT K1500 4X4 5.7L w/4L60E
PaceSetter Air Intake, ACCEL Plugs, Wires, Cap, Rotor, and Coil,
Edelbrock IAS Shocks, Painless Performance 4-High Beam Relay Kit

#8 coloradoSkiCountry

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Posted 21 October 2009 - 10:58 PM

Thought I would bring back an old post to see how the numbers are looking this year for you Duramax owners. And to hell with the poll that's old information!
Posted Image

GM- Simply the best, and saying "To Hell with the rest!"

#9 08_Denali_22

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Posted 21 October 2009 - 11:38 PM

I'm seeing roughly 16-18 mpg per tank on average with speeds of 70-80 mph and a 70 mile round trip daily. Thats with the mods in my sig and a real rough EFI Live tune. Plus I hammer on it quite a bit. :thumbs:
'04.5 LLY Duramax 2500HD Sierra
Performance:

EFI Live tuned, 5" MBRP Turbo Back, Resonator plugged, EGR plugged, PCV rerouted, and Modified airbox.
Audio:
Alpine Type X components run active, Alpine 4.100 PDX amp, Rockford 3sixty.2 processor, and an Alpine w205 head unit.
Suspension:
Cognito 10-12" w/ heavy duty end links.
Tires/Wheels:
38 15.50 Mudgrappler's mounted on 18x10 RBP 94R Black w/ Chrome Inserts




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