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Old 05-22-2016, 07:11 PM   #1
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Join Date: Oct 2015
Location: Kalispell
Posts: 178

Second trip with our new Jayco North Point 311 RKTS. Both trips now we have averaged just over 10 mpg with our 07 Dodge 2500 5.9L diesel. I'm pretty happy with that. The trailer specs says that with propane and nothing else, the trailer weighs 12,917 lbs. Towing our 2013 28.5 Eagle (spec weight 7780) we were getting around 12 mpg. Just curious how the rest of you are doing? I do use a Smarty Jr. programmer set to towing mode.

Happy Trails!


2017 Jayco Pinnacle 38FLSA
2007 Dodge Ram 2500 5.9 Diesel
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Old 05-23-2016, 08:25 AM   #2
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Location: Mills River
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I have about 600 miles towing out 355MBQS now. Dry weight 11,900lbs. This towing was mostly empty bringing it home. On the 3 fill-ups (26 gallon tank) I got 10 - 10.5.

I used to get 11.5 average towing our 10,000lb 35' TT, so I have lost about 1 mpg with the added height and weight.

Still not too bad for a 2003. I have a custom EFI Live tow tune.

2003 GMC Serria 2500HD - Lotsa Mods.
2016 355MBQS
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Old 05-23-2016, 08:33 AM   #3
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Location: SW Washington
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Just using math in my head, you've increased your dry weight by 20% and seen approximately the equivalent reduction in mileage.

I'm anticipating seeing about the same.
2009 F350 CC LB 4WD
2017 Jayco 355MBQS
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Old 05-26-2016, 08:16 PM   #4
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Location: Duxbury
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About 1500 miles so far on this trip and averaging about 12mpg. Estimated trailer weight is 11,500
Rob & Kelly, Bella & Brady (Miniature Schnauzers)
2018 Pinnacle 36KPTS
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Old 05-27-2016, 02:07 AM   #5
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Location: Tulsa
Posts: 21
I got just a little under 10mpg, but that is with a 5.7 Hemi gas engine, 3.92 gears and 8-speed auto. Makes sense the diesel crowd is getting a few extra MPG's.
2010 Jayco 26BH
2014 Ram 1500 CC Sport 4x4
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Old 05-27-2016, 06:06 AM   #6
Join Date: Apr 2016
Location: Cimarron
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I get about 8.5 with my F350 gasser pulling 339flqs 5th wheel.
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Old 05-27-2016, 09:33 AM   #7
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Location: Lander, Wyoming
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When we took a long trip a couple of years ago, 3,800 miles, we got 12 mpg for the entire trip. Our FW is 30' long and fairly light, about 7,200 lb dry and up to 9,950 fully loaded. We probably pulled around 8,000-8,500 pounds on our trip. When we also hook up our 19' crestliner behind the FW and go to the lake up to Grand Teton National Park, we are towing probably 12,000 to 13,000 lbs and we still get right at 12 mpg. We tow with a 2012 GMC D/A crew cab short bed pickup. Very happy with the mileage. We have a little lower front profile and I would bet that helps with our mileage compared to some of the bigger, heavier FWs out there.
2012 GMC 2500HD D/A Crewcab
2012 Jayco Eagle SuperLite HT 26.5 RLS
2009 Crestliner Superhawk 1900
2013 Polaris Sportsman 550 EXP
2008 Polaris Sportsman 700 X2
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Old 05-27-2016, 05:23 PM   #8
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Location: Trussville, Al
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Welcome aboard

Ron, Barbara & rescues Beamer (Lab mix), Buddy (Cavalier spaniel), Ruger (Golden retriever), Stanley (Bassett/Springer mix) and 3 grandsons
2012 Jayco Feather 29L BH
2015 Chevy 2500 HD Duramax and Equalizer WDH
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