RV.Net Open Roads Forum: Gas mileage with your rig alone, and with your fiver?


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keywester

Hamlin, TX

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Joined: 01/24/2004

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Posted: 05/10/08 08:37am

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Around 10.5 towing with no headwind and level Interstate highway. Strong headwind and hills knocks it down to about 8.5 towing. Without trailer getting about 20 at 65 mph after Dodge put new "flash" on my ECM. Was getting 18 before new programming on ECM.

2007 Jayco Eagle 341 RLQS
2007 Dodge Ram 2500 w/6.7L Cummins

tiptonj

Alvarado

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Joined: 01/31/2008

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Posted: 05/11/08 04:48pm

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18 to 20 empty and 10 to 11 when pulling my 32' 5ver. My wing added about 1 mpg for me

LIFE IS LIKE DUCT TAPE--IT HAS A LIGHT SIDE AND A DARK SIDE AND HOLDS THE UNIVERSE TOGETHER

dfb

gardnerville

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Joined: 09/29/2005

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Posted: 05/11/08 05:51pm

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9 towing, Best empty, 19.02 but usually 16 empty... at 4.50 a gallon, this is NOT fun...

Alan_W

Longmont, CO USA

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Joined: 02/15/2004

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Posted: 05/12/08 12:44am

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Usually 8.5 to 9 towing (mainly in the Western mountains) and 18 without the rig. I use a Hypertech Hyperpac tuner on the diesel and it increased my power and my mileage. I used to get 7.5 to 8 and 15 to 16 respectively.

Alan & Cathy
Brittany 14, Cody 11, Brooke 9 and Allison 4 --

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2004 GMC 2500HD Duramax/Allison, Prodigy, Reese 16K Slider, Timbrens
Crossroads Paradise Pointe PF32BH, Yamaha EF3000iSEB

Ezlife55

Oliver, BC, Canada

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Posted: 05/12/08 11:51pm

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04 Dmax gets 25 mpg empty and up to 16.8 mpg pulling 02 titanium 35' 5th wheel at 55 mph.......CDN gallons. Truck has AFE cold air intake and 4' exhaust-no CC.