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09-03-2017, 07:19 PM
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#1
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Senior Member
Join Date: Sep 2010
Location: Independence,LA
Posts: 189
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'15 DSDP Fuel economy
DW keeps telling me to quit whining at the pump. Just curious about fuel economy on my 45o Cummings. What are others getting? What is the "Sweet Spot"?? MPH/RPM's. Thanks in advance. Steve
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Steve & Laurie '15 DSDP 4369
2015 White Jeep Wrangler Sahara, Roadmaster All-Terrain Falcon II Previous: 2012 Cedar Creek 36RE
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09-03-2017, 07:23 PM
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#2
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Senior Member
Join Date: Jun 2013
Posts: 774
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Quit whining LOL.
Seriously, assuming a 43 footer. 65 is a good spot but I do 70 to 75. Wind at my back 7mpg to 6.5.
Wind against me 5.5 to 6.5 depending on wind speed.
I'm usually at 75 because the cruise won't hold any higher.
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09-03-2017, 07:25 PM
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#3
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Senior Member
Join Date: Sep 2010
Location: Independence,LA
Posts: 189
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Currently getting 5.5/5.8mpg, 70/75mph. Good/bad/indifferent??
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Steve & Laurie '15 DSDP 4369
2015 White Jeep Wrangler Sahara, Roadmaster All-Terrain Falcon II Previous: 2012 Cedar Creek 36RE
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09-03-2017, 07:29 PM
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#4
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Senior Member
Join Date: Jun 2013
Posts: 774
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Wind against you? It's about right. Wind with you, very bad.
What's your toad?
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09-03-2017, 07:30 PM
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#5
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Senior Member
Country Coach Owners Club Solo Rvers Club iRV2 No Limits Club
Join Date: May 2011
Location: Vancouver, WA
Posts: 37,725
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Contrast: my '02 DSDP w ISC and Banks kit got 8 mpg towing an '05 Honda Odyssey. My present ISX 650 gets 7.6 mpg over 47,000 miles, still getting the same towing the CR-V.. I hold no more than 60 - 62 mph.
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2009 45' Magna 630 w/Cummins ISX 650 HP/1950 Lbs Ft, HWH Active Air
Charter Good Sam Lifetime Member, FMCA,
RV'ing since 1957, NRA Benefactor Life, towing '21 Jeep JLU Rubicon Ecodiesel
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09-03-2017, 07:33 PM
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#6
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Senior Member
Join Date: Sep 2010
Location: Independence,LA
Posts: 189
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4 door wrangler ....average mph. Wind, no wind. Some say 60mph@1500rpm. Not retired for 8-10 more years so when we get in it we go. Just curious on the math at the 60mph spot.
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Steve & Laurie '15 DSDP 4369
2015 White Jeep Wrangler Sahara, Roadmaster All-Terrain Falcon II Previous: 2012 Cedar Creek 36RE
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09-03-2017, 07:33 PM
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#7
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Senior Member
Join Date: Jun 2013
Posts: 774
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Today with wind at my back I got 7mpg at 70 average mph.
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09-03-2017, 07:44 PM
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#8
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Senior Member
Newmar Owners Club
Join Date: Apr 2016
Location: Vail, Arizona
Posts: 2,057
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Brand new 2017 4018 I got 7.2 from Nappanee to Maine without the Jeep. After hooking on the Jeep I got 6.5 for the next 9,000 miles.
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Bill & Chris Bélanger (KI1Z)
'04 Georgetown XL > '17 4018 DSDP FL > '18 DSDP 4327 K2> ‘21 LA 4551 K3
2018 JL Wrangler Rubicon 2 Door
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09-03-2017, 08:06 PM
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#9
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Senior Member
Join Date: Sep 2010
Location: Independence,LA
Posts: 189
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Quote:
Originally Posted by BBelanger
Brand new 2017 4018 I got 7.2 from Nappanee to Maine without the Jeep. After hooking on the Jeep I got 6.5 for the next 9,000 miles.
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What engine do you have?
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Steve & Laurie '15 DSDP 4369
2015 White Jeep Wrangler Sahara, Roadmaster All-Terrain Falcon II Previous: 2012 Cedar Creek 36RE
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09-03-2017, 08:08 PM
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#10
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Senior Member
Newmar Owners Club
Join Date: Apr 2016
Location: Vail, Arizona
Posts: 2,057
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Quote:
Originally Posted by sdagro
What engine do you have?
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Same as yours right?
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Bill & Chris Bélanger (KI1Z)
'04 Georgetown XL > '17 4018 DSDP FL > '18 DSDP 4327 K2> ‘21 LA 4551 K3
2018 JL Wrangler Rubicon 2 Door
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09-03-2017, 09:16 PM
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#11
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Senior Member
Newmar Owners Club
Join Date: Mar 2016
Location: The Great Outdoors, RV Resort, Florida
Posts: 748
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On my first trip to take home our 2015 DS 4369, my rough estimate was 7 MPG. But I drove 70-75 mph most of the time.
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Buly, Doris and Daisy
2015 DS 4369 towing 2014 CRV
It is never too late to have a happy childhood! 
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09-03-2017, 10:08 PM
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#12
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Senior Member
Join Date: Apr 2015
Posts: 329
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I get about 6.5 mpg going uphill, 8 going downhill. Much better mpg when dropped out of the end of a C5 cargo jet. [emoji12]
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Verne and Kim
2016 Dutch Star 4313
2015 Dodge Ram 2500 Laramie Diesel, Blue Ox Adventa, Air Force One
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09-04-2017, 08:46 AM
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#13
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Member
Monaco Owners Club Newmar Owners Club Freightliner Owners Club
Join Date: Mar 2009
Location: Mooresville, NC
Posts: 54
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15' DS 4369 - 30,000 miles. 60 to 65 mph, always between 7.0 and 7.5 mpg. I was hoping for around 8.
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Joe & Linda Meesters
'15 DS 4369/'14 Honda CRV.. 
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09-04-2017, 09:33 AM
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#14
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Senior Member
Nor'easters Club
Join Date: Apr 2003
Location: Mid-Hudson Valley NY, USA
Posts: 1,332
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Also 15 DS 4369. 63-65 mostly. 7.0 - 7.6 give or take. My 41' 09 HR 400 ISL regularly got 8.25-9, but now I'm pushing a lot more weight. I figure the fuel penalty is worth the added upgrade into the DutchStar.
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[SIGPIC][/SIGPIC] Ron & Kathy
2020 Newmar London Aire 4569
2019 Ford F150 Limited 450hp
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