2005 duramax fuel mileage

Shooterrick · 11-21-2006, 03:13 PM

Whoa, 13mpg on good days!! What performance programer will positively effect fuel mileage the most??

vanhal · 11-21-2006, 08:36 PM

Quote:

Originally Posted by Shooterrick

Whoa, 13mpg on good days!! What performance programer will positively effect fuel mileage the most??

hello there you should do much better wow it should be about 18 to 22
are you running a dually 1 ton or a 2500 and pulling a trailer
i have a 1500 350 gas and i get 13 pulling a trailer .........pete

Shooterrick · 11-22-2006, 06:57 AM

Pete, single axle, no trailer, no nothing, 2500. I traded a 250 Ford with 6.0 and was getting 18 around town with Edge Juice programer.

STPETEBLUE · 12-03-2006, 07:33 PM

I average 13.5 mpg with my truck, completely stock. 90% in town. I drive it real easy.

Hate to contradict on here, but no one can expect 18-22 mpg on a stock LLY in stop and go traffic. I can get 20 mpg on the highway at about 60 mph. Faster than that and it drops drastically.

But I didn't buy it for it's economical mileage.

Russ Weaver · 02-15-2007, 08:04 PM

I bought an '06 Silverado 2500HD crewcab with the Duramax/Allison combo and I just got back from a 5,000 mile holiday to Arizona where the average mileage, pulling a 28' 5th wheel, was 12 MPG to the US gallon! Skootin' along in cruise at 60 mph w/o trailer I pick up 6-8 MPG at least (depending where the wind's coming from....In town, about 15-18 depending on how much of a hurry I'm in...I dunno....heavier? Higher diff gears? I have 6 speeds in my box...maybe that extra O/D?

11-21-2006, 03:13 PM	#1
Shooterrick Junior Member Join Date: Nov 2006 Posts: 2	2005 duramax fuel mileage Whoa, 13mpg on good days!! What performance programer will positively effect fuel mileage the most??

12-03-2006, 07:33 PM	#4
STPETEBLUE Full Member Join Date: Oct 2006 Location: St. Petersburg, FL and Waycross, GA Posts: 34	I average 13.5 mpg with my truck, completely stock. 90% in town. I drive it real easy. Hate to contradict on here, but no one can expect 18-22 mpg on a stock LLY in stop and go traffic. I can get 20 mpg on the highway at about 60 mph. Faster than that and it drops drastically. But I didn't buy it for it's economical mileage. __________________ 2005 Silverado 3500 DRW 6.6L LLY/Ally 5 Spd \| LT \| EC \| LB\| '06 Silverado "Steel Bed" Tail Lights, '06 Towing Mirrors, VR Straps. Click here for more about The Florida Diesel Truck Club

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11-22-2006, 06:57 AM	#3
Shooterrick Junior Member Join Date: Nov 2006 Posts: 2	Pete, single axle, no trailer, no nothing, 2500. I traded a 250 Ford with 6.0 and was getting 18 around town with Edge Juice programer.

02-15-2007, 08:04 PM	#5
Russ Weaver Full Member Join Date: Nov 2006 Location: Burnaby,BC Posts: 20	I bought an '06 Silverado 2500HD crewcab with the Duramax/Allison combo and I just got back from a 5,000 mile holiday to Arizona where the average mileage, pulling a 28' 5th wheel, was 12 MPG to the US gallon! Skootin' along in cruise at 60 mph w/o trailer I pick up 6-8 MPG at least (depending where the wind's coming from....In town, about 15-18 depending on how much of a hurry I'm in...I dunno....heavier? Higher diff gears? I have 6 speeds in my box...maybe that extra O/D?