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Open Roads Forum  >  Tow Vehicles

 > Chevy 6.0 gas milage

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sc3283

St Louis

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Posted: 02/12/12 01:27am Link  |  Print  |  Notify Moderator

rottidawg wrote:


What are the Dmax boys seeing, thought I heard about 18 mpg empty?

My 04 D max crew dually 4wd gets 17mpg @70mph(summer time) unloaded. It did get 18-19 prior to the ultra low sulfur fuels coming into play


04 D-Max Crew Dually

96 Monaco Dynasty 36'


Salty Dog

Upstate NY

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Posted: 02/12/12 03:46am Link  |  Print  |  Notify Moderator

My '06 CC 4x4 gets around 18.5 normal driving on summer blend fuel, 17.4 on winter blend with a high profile cap installed. Highway travel is easy to get above 19.
Towing the 5'er I always estimate 10 for trip planning. Any direction I travel involves many hills, usually our trips to Myrtle Beach will average 10.2 I drive with cruise control set at 68 - definitely would get better driving with the pedal.
Best I ever acheived was 12.1 on I-4 in Florida. Worst was/is about 9.6 in mountains of PA.
Good luck Mike


Wife, kids, somebody else's kids, dog, kitchen sink

Cleverly disguised as an adult.


zackyboy3rs

Eastern North Carolina

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Posted: 02/12/12 02:33pm Link  |  Print  |  Notify Moderator

15 mpg running around. 70/30 hwy/city. 1st tank. New tank right at 14 50/50 driving. I will be keeping it out of the city as much as possible.


2009 Chevy Silverado LTZ 2500HD 6.0L, 3.73, Gas sipper
2011 Palomino Sabre 31 qbds

DrBaker

Oklahoma

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Posted: 02/26/12 06:33pm Link  |  Print  |  Notify Moderator

DrBaker wrote:

DrBaker wrote:

That sounds good. I'm looking at a 2012 and expect 14 or better when not towing. Still not sure if I am ready for a new one.


My first tank was 14.5 mpg. That is good enough for my needs. I might get lucky and get a little more when the engine gets broke in. Just need 500 miles on it to start towing!

Edit: I used E10. I will try 100% soon and see how it reacts.


15mpg on the second tank.

Went camping this weekend and got 9mpg with a good amount of city driving. With more highway towing I hope to see 9.5+.

All things considered I am happy with the new 6.0 gasser.


2011 Chevy 2500HD CC/SB 4x4 Victory Red
2003 Crossroads Cruiser CF27RL
Champion Screamer, Reese 16k, and a Blue Status Symbol

APT

SE Michigan

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Posted: 02/27/12 08:05am Link  |  Print  |  Notify Moderator

Took a trip to Disneyworld from MI in early Feb. 2667 miles, Yakima Rocketbox on top and couple bins on a cargo carrier on the rear hitch. 15mpg on the way down, 14mpg on the way back. Strong headwinds on the return trip, and 75-80mph. Wished for a little better, but it rode and drive so well.


A & A parents of DD 2005, DS1 2007, DS2 2009
2011 Suburban 2500 6.0L 3.73 pulling 2011 Heartland North Trail 28BRS
2012 VW Passat TDI

ksss

Eastern Idaho

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Posted: 02/12/12 12:28pm Link  |  Print  |  Notify Moderator

My 06, 3500 4X4,CC, DRW is 16.2 at Interstate speeds.


2006 GMC 3500 CC 4X4 D/A
2013 Fuzion 342
2011 RZR Desert Tan
2012 Sea Doo GTX 155
2005 GMC 5500 CC 4X4 D/A
2012 Chevy 2500HD 4X4 6.0 3.73


Ridgerunner29

Tennessee

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Posted: 02/29/12 05:37am Link  |  Print  |  Notify Moderator

I have a 2010 CC 4X4 3.73. I get 16 - 17 mpg on a dry highway unloaded at 70 mph. Non-ethanol 87 will get me 1-2 mpg improvement. There is an IGA grocery gas station south of here that sells all non-ethanol for the same price that others sell 10% ethanol fuel. I fill up at the IGA whenever I get close to it. Gas stations around lakes will often sell non-ethanol gas for the outboard motors but at a premium price.

My mpg pulling a 25 ft Airstream (6300#) is 11 mpg at ~60mph.

I recently bought gas at a no-name station in Florida and my mpg dropped from 11 mpg to 9.5 mpg. It improved by to 11 mpg with my next fillip in Alabama. My guess is that the ethanol content was in excess of 10%.

Non-ethanol gas seems to have no effect on the mpg of our family car.


Bud
2012 Silverado CC 2500HD 6.0 3.73 4X4
2002 Airstream Safari 25


therink

Rochester

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Posted: 02/27/12 10:09am Link  |  Print  |  Notify Moderator

Last week I filled my tank with non-ethanol 91 octane (available at one station in my area). With E10 87 oct, I average 11.5 mpg. I'm getting 11.8 with the 91. Not worth the 30 cent/gal difference. I will say that the truck runs better with no ethanol.


Steve Rinker
Rochester, NY
2013 Keystone Sydney 340FBH 5th Wheel, 12,280 lbs wet
2012 Silverado 3500HD, SRW, LTZ, 4x4, Z71, CC, 6.0 Gasser, 4:10 Axle, Short bed, payload 3,900 lbs.

Take my posts for what they are, opinions based on my own experiences.


t?m

Ohio

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Posted: 02/27/12 10:00am Link  |  Print  |  Notify Moderator

Just rec'd our 2500 4x4 with 4.10 rear. Averaged a hair under 12 for the first tank. No clue what gas the dealer filled it with if it was E85 or regular 87 octane. Not great but about what I figured on.

For those of you filling with premium have you calculated the cost per mile? Does it offset the additional cost?

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