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07-26-2020, 08:02 PM
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#1
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Junior Member
Join Date: Aug 2019
Location: PA
Posts: 29
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DP Fuel Mileage
Just wondering what everyone with similar DP's are getting for fuel mileage just got back from our first trip got 7.5 mpg towing our boat which is about 6000lbs and generator running, we were definitely pulling some hills on this trip as well. We have a Cummins 350 with banks turbo.
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07-26-2020, 08:13 PM
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#2
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Community Moderator
Monaco Owners Club
Join Date: Jul 2016
Location: Central, Arkansas
Posts: 11,285
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Thats about right. With few hills towing a 4000 lb toad and genny running I get about 8-8.5 mpg. No Genny 8.5-9. I usually run 65-68 MPH.
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2004 Beaver Monterey Laguna IV
Cummins ISC 350HP Allison 3000 6 speed
2020 Chevy Equinox Premier 2.0t 9 speed AWD
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07-26-2020, 08:17 PM
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#3
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Senior Member
Join Date: Mar 2019
Location: Braidwood Il.
Posts: 8,300
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You forgot to add your avg. cruising speed on highway.
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95 Monaco Crown Royale
M11 400hp, 4060 trans.
Aquahot, Generac Guardian7.5k
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07-26-2020, 08:17 PM
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#4
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Senior Member
Join Date: May 2018
Posts: 1,731
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I can't tell from the picture exactly what you have, nor did I see the info in your profile, so it's hard to do a good comparison, but I had two 40' Winnebago Journey diesels..one with a 330 Cat and one with a 350 Cat and ran in the mid 7's mpg towing. My current 43' Mountain Aire with the 450 Cummins ISL 9 is in the mid 7's towing a 6000 lb pickup.
I don't kill it on the highway, though. I usually run 62 to 65 mph on interstates. Speed is the enemy of fuel economy.
__________________
"Second star to the right and straight on 'til morning"
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07-26-2020, 11:30 PM
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#5
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Junior Member
Join Date: Aug 2019
Location: PA
Posts: 29
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Sry I have my info in my signature, .... I see it didn't post we'll see if it posts this time🤔.. . We have a 04 Thor Mandalay 40B Cummins 350 isc with a banks turbo avg speed is about 65
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07-26-2020, 11:32 PM
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#6
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Junior Member
Join Date: Aug 2019
Location: PA
Posts: 29
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On another note, If anyone knows why my signature isn't showing let me know there is a check in the box to show signature!!
__________________
Josh
2004 Mandalay 40B Green - Freightliner XC Chassis Cummins 350 ISC Turbo Charged w/ banks system
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07-26-2020, 11:45 PM
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#7
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Senior Member
Newmar Owners Club Freightliner Owners Club
Join Date: May 2012
Location: Today? Clayton, North Carolina
Posts: 5,093
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DP Fuel Mileage
Quote:
Originally Posted by Skip4Josh
On another note, If anyone knows why my signature isn't showing let me know there is a check in the box to show signature!!
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Skip.... I have the same issue re signature. Mine is turned on at the forum website, but does not show on my iPhone.
On the mileage, you’re right in the bracket. My 40 ft ‘02 DS (3126 CAT) is virtually always towing my 3500 Lb toad when moving, and I always cruise at 1750 RPM, which yields about 63-66 mpg. Eight year average (50K miles) is 7.6 mpg.
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John and Diane (RIP Lincoln, 21 FEB 22) RVM103 NHSO
Fulltimers since June, 2012
2002 Dutch Star 40, Freightliner, Cat 3126, 2004 Element
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07-26-2020, 11:49 PM
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#8
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Senior Member
Monaco Owners Club Workhorse Chassis Owner
Join Date: Aug 2002
Location: Clovis, CA, USA
Posts: 13,138
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Josh and John...your signatures are showing now.
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2004 Monaco La Palma 36DBD, W22, 8.1, 7.1 MPG
2000 LEXUS RX300 FWD 22MPG 4020 LBS
Criticism is easier than Craftsmanship
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07-27-2020, 04:08 AM
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#9
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Senior Member
Join Date: Apr 2012
Posts: 573
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I seem to average out right around 7. There are days it is worse and days it is better.
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2015 Winnebago Tour 42QD
Cummins 8.9 ISL 450
Freightliner XCL W/IFS
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07-27-2020, 10:24 AM
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#10
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Member
Join Date: Apr 2020
Posts: 62
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We just did or first trip from Vegas to Wyoming and back, 1900 miles pulling a ram 1500 cc with our 2004 40’ coachmen sports coach elite with a Cat 3126. We got 7.52 average on the trip, which according to replies I am in line with others. We travel at 65-70 most of the time.
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07-27-2020, 10:28 AM
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#11
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Senior Member/RVM #90
Monaco Owners Club
Join Date: Nov 2002
Location: Columbus, MS
Posts: 54,768
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We get 8-9 MPG on our 40' Monaco Windsor towing the car at 60 MPH.  
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Joe & Annette
Sometimes I sits and thinks, sometimes I just sits.....
2002 Monaco Windsor 40PBT, 2013 Honda CRV AWD
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07-27-2020, 10:32 AM
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#12
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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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ISX 650 (910 ci), Allison 4000 MH in a CC Magna. Weight of 52,000#'s now towing a Jeep Wrangler. 7.7 mpg overall for 64,000 miles. Discounting aquahot and generator usage. Avg speed of 60-65 mph. Since the rebuild last your it's happier at 65 than 60.
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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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07-27-2020, 10:52 AM
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#13
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Senior Member
Entegra Owners Club Spartan Chassis
Join Date: Jun 2019
Location: New Hampshire
Posts: 442
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I get about 9.5mpg with my toad. Without the toad and if I keep a light foot, I can get over 10. Cummins B6.7. MH is probably about 30k lbs and toad is around 5500lbs. I usually cruise at 65-70mph or the speed limit, whichever is lower.
Every time I get passed by somebody with an ISL or ISX, I flip to my fuel economy gauge to make myself feel better.
__________________
2019 Entegra Reatta 39BH
2018 Winnebago Minnie Plus 27BHSS, "Raspberry" (retired)
2017 Ford F-150
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07-27-2020, 11:20 AM
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#14
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Senior Member
Join Date: Nov 2014
Posts: 475
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When I picked up our 'new' '04 Country Coach Inspire 40' DP (w/Cummins 350ISC), I averaged 9.6mpg towing a 1999 Blazer 4door. Average speed 65mph.
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2004 Country Coach Inspire Genoa
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