 |
|
11-19-2016, 08:46 PM
|
#1
|
|
Senior Member
Join Date: Sep 2004
Posts: 1,841
|
2017 Dutch Star 4369 Fuel Mileage
After our fifth refueling, I am finding we are averaging 6.5 mpg. This is about 1 mpg less than our 2012 SOB coach with the same engine. Granted, our Dutch Star weighs 8,000 lbs more and our previous coach was 40 foot without the tag axle.
I typically drive 63 mph and most driving is on interstate highways. Our loaded weight is 43,500 lbs.
For comparison sake, what is the fuel mileage on your 2016 or 2017 Dutch Star 4369?
Rex
__________________
2022 New Aire 3545
Huey Pilot — Vietnam 1971-72
Author of: ACE, The Story of Lt. Col. Ace Cozzalio
and: The Aviators: Stories of Helicopter Combat in Vietnam 1971-72
|
|
|
 |
Join the #1 RV Forum Today - It's Totally Free!
iRV2.com RV Community - Are you about to start a new improvement on your RV or need some help with some maintenance? Do you need advice on what products to buy? Or maybe you can give others some advice? No matter where you fit in you'll find that iRV2 is a great community to join. Best of all it's totally FREE!
You are currently viewing our boards as a guest so you have limited access to our community. Please take the time to register and you will gain a lot of great new features including; the ability to participate in discussions, network with other RV owners, see fewer ads, upload photographs, create an RV blog, send private messages and so much, much more!
|
|
11-19-2016, 08:52 PM
|
#2
|
|
Senior Member
Join Date: Oct 2011
Location: Fulton NY
Posts: 416
|
Running a 2015 DS 4369 and getting now about 7.6 to 8 depending on whether I am towing my keep with a HD dresser on a lift on the coach. Have about12K in miles, it was not so good at the beginning.
__________________
David & Anne Marie
2015 Dutch Star 4369
All Electric Coach
HWH Active Air Suspension 2014 Wrangler
|
|
|
|
|
11-19-2016, 09:21 PM
|
#3
|
|
Senior Member
Join Date: Sep 2004
Posts: 1,841
|
Oops, I failed to mention we are towing a 2015 Cadillac SRX weighing 4,600 lbs.
Rex
__________________
2022 New Aire 3545
Huey Pilot — Vietnam 1971-72
Author of: ACE, The Story of Lt. Col. Ace Cozzalio
and: The Aviators: Stories of Helicopter Combat in Vietnam 1971-72
|
|
|
|
|
11-19-2016, 10:00 PM
|
#4
|
|
Senior Member
Newmar Owners Club
Join Date: Apr 2016
Location: Carefree, AZ
Posts: 620
|
With our 2016 DSDP 4018 we get about 6.5 mpg when towing our 5,000 pound Jeep Grand Cherokee. That's calculated by hand based on roughly 5,000 miles. The on-board system claims 7.5 mpg.
__________________
Juergen & Margit
2016 Newmar DS 4018
2016 Jeep GC Limited 
|
|
|
|
|
11-20-2016, 06:09 AM
|
#5
|
|
Senior Member
Join Date: Oct 2014
Posts: 1,121
|
Not saying it matters wrt mpg, but do you have a Spartan or Freightliner chassis? (I'm knit picking my own decision due Monday  ). Btw, I was told that mpg gets better as you break in the drive train.
Quote:
Originally Posted by LK23
Oops, I failed to mention we are towing a 2015 Cadillac SRX weighing 4,600 lbs.
Rex
|
|
|
|
|
|
11-20-2016, 06:15 AM
|
#6
|
|
Senior Member
Newmar Owners Club
Join Date: Aug 2015
Location: Greensboro, Ga.
Posts: 455
|
We have a 2015 DSDP
Get's 7.2 mpg while towing a Buick Enclave.
Approx 13 k miles on engine
__________________
Dave H
|
|
|
|
|
11-20-2016, 06:47 AM
|
#7
|
|
Senior Member
Join Date: Nov 2007
Location: Charleston, WV
Posts: 3,469
|
Not a direct comparison but we just did a 3,000 mile round trip to Texas and averaged 8.1mpg. I guess you pay for that extra 50hp.
__________________
John and Mary Knight
2015 Newmar Ventana 4311 - wheelchair accessible
2015 Cadillac SRX Luxury AWD
|
|
|
|
|
11-20-2016, 07:03 AM
|
#8
|
|
Moderator Emeritus
Jayco Owners Club RV Trip Wizard
Join Date: Oct 2009
Location: Poinciana FL
Posts: 7,781
|
I don't think there's much if any difference between the engine in your coach and what we had in our 2011 Revolution. We started out at about the same 6.5 mpg, towing a 4500 lb Jeep Wrangler Unlimited. Between 12 and 15k miles we started seeing an increase. From that point I did all my trip planning assuming 7 mpg. Depending on weather and terrain we might get slightly more or less. Altime high was 7.8.
__________________
Jay and Peggy Monroe
"Can't take it with you, not leaving any behind"
2024 Jayco White Hawk 26FK
2024 Ford Expedition
|
|
|
|
|
11-20-2016, 09:16 AM
|
#9
|
|
Senior Member
Join Date: Jul 2015
Location: Lenexa KS
Posts: 2,085
|
We only have 13K miles but have yet to see anywhere near 8 mpg. We tow a 4200 lb car, drive 65 mph and are more in the 7-7.4 mpg range.
__________________
Bill & Kelli 2015 Dutch Star 4366
2002 Safari Zanzibar 3906
1995 Fleetwood Bounder 36JD
|
|
|
|
|
11-20-2016, 09:39 AM
|
#10
|
|
Senior Member
Join Date: Nov 2007
Location: Charleston, WV
Posts: 3,469
|
Make sure that you reset your average mpg display at each fueling and see if your economy is improving. This will eliminate your early "run-in" period which will drag your average down.
__________________
John and Mary Knight
2015 Newmar Ventana 4311 - wheelchair accessible
2015 Cadillac SRX Luxury AWD
|
|
|
|
|
11-20-2016, 10:08 AM
|
#11
|
|
Senior Member
Newmar Owners Club
Join Date: Apr 2016
Location: Carefree, AZ
Posts: 620
|
Don't trust the computed "Average MPG" on the display. It is off by at least 1 MPG, at least in our 4018. I only compute it by hand and not just from one fill-up - typically I use an entire trip to calculate my MPG. I never got above 6.8 MPG that way. I stay within the speed limits, but we do have mountain grades wherever we go.
__________________
Juergen & Margit
2016 Newmar DS 4018
2016 Jeep GC Limited
|
|
|
|
|
11-20-2016, 12:57 PM
|
#12
|
|
Senior Member
Join Date: Sep 2004
Posts: 1,841
|
I don't use the trip computer on the dash. I hand calculate my fuel mileage after several refuelings and get the average. So far, it is 6.5 mpg and I have 2,300 miles on our coach.
One difference I notice is that 63 mph was 1520 rpm on our previous coach. On our Dutch Star, 63 mph is around 1600 rpm. That may account for some of the fuel mileage difference.
Rex
__________________
2022 New Aire 3545
Huey Pilot — Vietnam 1971-72
Author of: ACE, The Story of Lt. Col. Ace Cozzalio
and: The Aviators: Stories of Helicopter Combat in Vietnam 1971-72
|
|
|
|
|
11-20-2016, 02:37 PM
|
#13
|
|
Senior Member
Join Date: Mar 2014
Posts: 1,459
|
Rex I wonder if Cummins has power charts that show rpm/torque/gpm type of information. If they do then you might be able to find the sweet spot in the power curve, at least for lab/theoretical situation. As I do my research it seems that just about everything is 7mpg. Ask an OTR driver and many are roughly the same, sometimes lower but not significantly so in most cases.
__________________
Gary 2021 NH Majestic
Ram 5500 with Bodywerks bed
Box Elder, SD and the road
|
|
|
|
|
11-20-2016, 02:44 PM
|
#14
|
|
Senior Member
Join Date: Mar 2014
Posts: 1,459
|
Rex found this. Might be a good read...
cummins_secrets_of_better_fuel_economy.pdf
And #8 on the top 10 list of Best MPG on the ISX15:
Measuring Fuel Economy.
8. Run 50,000 miles (80,467 km) before measuring fuel economy. Early results are not an accurate representation. Tire break-in and effects of first fill can skew the results.
And this chart:
So maybe we just aren't driving enough miles. By the chart we need to get through the first 100,000 miles and you might see 10-12mpg if starting out with a first fill of 6mpg. As Big Mike at Spartan says, "Drive it Like You Stole It!". cummins_secrets_of_better_fuel_economy.pdf
__________________
Gary 2021 NH Majestic
Ram 5500 with Bodywerks bed
Box Elder, SD and the road
|
|
|
|
|
|
|
Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
|
|
|
Posting Rules
|
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts
HTML code is Off
|
|
|
|
» Recent Discussions |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Linear Mode
