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Topic: Class A fuel economy for diesel pushers

Posted By: vahandyman09 on 10/17/11 09:48pm

getting ready to purchase a diesel pusher and wondering what you people with like units are getting without exadurating !
just post what you are getting with what engine and pulling a toad or trailer. probably wont change my mind about buying it but just want to prepare myself for how much fuel i will be using
Thanks to all


Posted By: revump on 10/17/11 09:59pm

@ 55 MPH = 7-10 MPG


Bob


Posted By: sailor_lou on 10/17/11 10:05pm

MPG: 7.5 to 8.5 with a CAT 350 and almost always pulling a Honda Accord. The MOHO is 38' with four slides and loaded weight is approx. 31,000 lbs.

MPG varies with hills and wind conditions. I don't drive with fuel economy in mind, which means quick starts off the line (whatever quick is for a MOHO) and cruise 65 to 70 on the highway.

Lou
05 Travel Supreme Envoy


Posted By: bsimonds on 10/17/11 10:08pm

38' Winnebago w/330HP Cat engine. 66,003.2 miles on 9,101.6 gals of fuel for a long term average of 7.25 MPG. Someone else put the first 63,000 miles on it and I don't know how fast they drove, where they drove, or what they towed, but I've got about the same mileage driving with the flow of traffic or 65 MPH whichever is slower towing a 5,000 lb toad.


Bill Simonds
'99 Winnebago Ultimate Freedom
330HP "Yellow" motor
'94 K5 Blazer 4X4 toad



Posted By: Fishinghat on 10/17/11 10:17pm

Average 9.5 to 10.5 mpg, at an average of 55 to 60 MPG, powered by a 8.3 300 HP mechanical Cummins, 6 speed, in a coach that weighs 26,400 lbs, pulling a 4,500 lb toad. That's over 50K miles.


Holiday Rambler Navigator DP, Hummer, and Honda VT1100C Shadow



Posted By: Dick A on 10/17/11 10:58pm

The MPG will vary depending on your weight, engine, speed, and terrain. In my case I am about 37K lbs, drive in a fair amount of mountain passes and headwinds. With about 25K miles on the coach driving generally around 665 MPH I have averaged right at 7.0. The electronic metering indicates I would get about 8 MPG if I slowed down to 55 MPH but my foot just has too much lead in the sole.


2009 Tiffin 43QBP Allegro Bus
RoadMaster Sterling Tow Bar
US Gear UTB
Ford Explorer Sport Toad
WAYMXP
"Pisqually" the attack kitty


Posted By: Shot-N-Az on 10/18/11 05:07am

Cummins ISC. New coach to me, and thus far have filled up twice. 6.3 and 6.7 on the two fill ups. I tow a small Ford ranger and can't drive 55.


Posted By: randco on 10/18/11 05:30am

40'coach, 330 Cat, Toad 4,200 lbs, = 8.5 avg to date.


Posted By: supercub on 10/17/11 11:25pm

40ft, 34,000lbs gross, tow Ford Escape Hybrid, so far have averaged about 7.2mpg, usually drive between 55-58mph. 400hp Cat

* This post was edited 10/18/11 09:11pm by supercub *


Posted By: Executive on 10/17/11 11:26pm

Current trip...10,860 miles ... 10mpg on Heartland flatlands, 7 thru the Rockies. Average 8.1.... Cummins ISM pulling Chev HHR 3180#. We tip the scales at 47,000#....Dennis


MY SENSE OF HUMOR IS THE MAIN REASON I'LL MOST LIKELY GO TO HELL !
Dennis and Debi Fifth Year Full Timing
Monaco Executive M-45PBQ Quad Slide
525HP Cummins ISM 6 Spd Allison
2014 Chevrolet Equinox LTZ W/ ReadyBrute
CLICK HERE TO VIEW OUR TRAVEL BLOG



Posted By: caymann on 10/18/11 05:50am

according to veh computer...

7.45mpg when pulling jeep....level rd, gentle wind
7.1mpg when pulling truck.....level rd, gentle wind

Wt is 40klbs (gvwr is 46klbs) and drive at 62mph
Engine is Cummins ISM 500 w/4.3 axle on a Allison 4000MH tranny
Use gear 6 (max) and economy more on level road
User gear 5 (max) on grades


01'Monaco Executive Tag
RM(S)chassis,Cum-ISM500
04'Dodge Ram 3500,Cum-ISB325
05'BMW F650GS motorcycle


Posted By: zmotorsports on 10/18/11 05:57am

40' rig w/ Cummins ISL400 weighing 36k pounds towing a 4500 pound Jeep we get ~7.5 mpg and when towing our Haulmark Edge enclosed trailer weighing ~10,500 pounds loaded with toys we get just under that at around 7-7.25 mpg. Travel speed is with the cruise control set @ 67 mph.

Mike.


2003 Monaco Dynasty/ 26' Haulmark Edge trailer
2011 Jeep Unlimited Rubicon



Posted By: tandkj on 10/18/11 05:58am

40' Camelot 08 w/a Cummins 425hp getting 8.5 to 9.8 and cruise set at 58.


Tis another fine day to serve in and for the glory of the Corps. Every day is a holiday and every meal a feast.
08 Camelot Custom build
07 Ranger Toad
One Golden Retriever at the Rainbow Bridge and a new one traveling with us.


Posted By: Klueck on 10/18/11 06:21am

Just got our coach but so far we've been averaging about 6.5. That's running the generator though so we can use the air conditioner.

We travel around 60mph. No mountains or big hills yet.

Ours is a 41 foot, with 350 Cummings, weighing 33,120 lbs. We tow a small Nissan truck.

The previous owner told us he got about 9-10....yeah right!


Posted By: Klueck on 10/18/11 06:22am

double posted...sorry


Posted By: imgoin4it on 10/18/11 06:43am

Cummins ISL, 400 HP, 2006 engine, driving about 63 MPG equals 7.0 MPG


Retired and loving it
Living in the Land of Enchantment
Traveling in 2007 Newmar KSDP
towing a Jeep Liberty
with a Blue Ox tow bar


Posted By: DBakker on 10/18/11 06:50am

I get 7.3 MPG average every year 330 hp 38' pulling a toad
32,000 lbs


2000 Newmar Dutch Star 330hp
toad 2013 Toyota Tacoma



Posted By: Valkyriebush on 10/18/11 06:57am

Cat 330 Turbo w/Allison 3000 55 = 10 60-65 = 8


Command Master Chief (AW) USN, (ret)
2003 Fleetwood Excursion 330 Turbo Cat 39D
2000 Jeep GC
2005 Big Ruckus (Rides Behind Jeep)
2003 VTX 1800


Posted By: Marv Hoag on 10/18/11 07:15am

Overall about 8 MPG. Since I tow Hondas, I seldon go over 65 MPH.


2000 Monaco Windsor 40'
2004 Honda CRV, Unified Tow Brake
2009 Honda Fit Sport



Posted By: jauguston on 10/18/11 08:54am

7.5-8 mpg. 32,000# including the Samurai. Cruise set at 60 mph. We cross rhe Cascade mountains on HWY 20 and HWY 2 fairly often.

Jim


2005 Coachman Sportscoach Elite 402 40'
350hp Cat C-7 w/MP-8
7500w Onan quiet diesel generator
6-Kyocera 130w solar panels SB3024i MPPT controller
Pressure Pro TPMS
1987 Suzuki Samurai tintop Toad w/VW 1.6 turbo diesel power



Posted By: doc brown on 10/18/11 08:59am

44,000 miles with Jeep Wrangler in tow, mostly mountain driving in the west, genset running 50% of the time, driving 55-65 mph on cruise control most of the time, silverleaf says 6.9 mpg


Steve,Kathy,Josh & Morpheus the Basenji
2004 40' TSDP Country Coach Inspire DaVinci
350 Cummins, 3000 Allison
2008 Wrangler X Rubicon/Blue OX Tow Bar/Ready Brake


Posted By: Cloud Dancer on 10/18/11 09:06am

At a combined weight of 35,000 lbs, I get 7.5 to 8.0 mpg (8.3 ISC Cummins).
I set the cruise speed at 65 mph.


Willie & Betty Sue
Miko & Sparky
2003 41 ft Dutch Star Diesel Pusher/Spartan
Floorplan 4010
Blazer toad & Ranger bassboat


Posted By: howdy35 on 10/18/11 09:09am

From Texas to Colorado and back, we averaged 9.2 but range from 8-10 depending on the terrain. Running 300hp turbocharged CAT towing Honda Odyssey with cruise set at 62. At todays fuel prices ($3.65), I figure my trip at $.50 per mile and that tells me how much I need for fuel for the trip. That figure may be a bit high but it will be in the ballpark. Works for me......Arnold


1999 National Tradewinds
2001 Honda Odyssey--Toad
Fulltime Wanabee


Posted By: Mr.Mark on 10/18/11 09:10am

Our fuel average is 7.9 mpg over 48,300 miles as indicated on our Aladdin system (425 hp Cummins). We weigh just a hair over 40,000 lbs plus we pull our 3,400 lb. toad 99.9% of the time.

I check our fuel mileage at every fill-up (pencil to paper). It has ranged from 4.4 to 10.1 which depended greatly on terrain, wind, traffic, etc. I keep the speed between 55-60 most of the time. Just recently driving through NM and AZ where the speed limit is posted at 75, I ran 65 mph as not to be going too slow.

MM.


Mr.Mark
2013 Honda CR-V EXL, AWD, w/Nav, SMI Air Force One vacuum-assisted braking, Blue Ox base-plate, Blue Ox tow bar.
2015 Liberty


Posted By: Ozarkan on 10/18/11 09:13am

New to us 39' MH with 400 hp cummins towing a 5100lb toad. All driving has been in the Ozark hills and mph is 6.68. Our true test will be our 2500 mile round trip to Florida in Dec. Lots of flat interstate and cruse control. Hope for some inprovement in mph.


Warren & Judy
2007 Newmar Kountry Star DP 39'



Posted By: slickest1 on 10/18/11 11:32am

Dick A wrote:

The MPG will vary depending on your weight, engine, speed, and terrain. In my case I am about 37K lbs, drive in a fair amount of mountain passes and headwinds. With about 25K miles on the coach driving generally around 665 MPH I have averaged right at 7.0. The electronic metering indicates I would get about 8 MPG if I slowed down to 55 MPH but my foot just has too much lead in the sole.



665 MPH. Wow that's cruisin!! I know what you meant couldn't resist.


2000 H.R. Imperial 38wds rr8r roadmaster, isc 350 cummins
2007 Chevy Trailblazer, Blue ox towbar
Ready Brake with breakaway.



Posted By: SS Slacker on 10/18/11 11:52am

I have tracked my fuel consumption for the past 8 years since new:

24,000 pounds (coach only) pulling boat (3,500 pounds) 50% of time.
65 MPH is my typical freeway speed
300 ISB w/ 57,000 miles
8.7 MPG total Average.


Dan & Tracy
2 kids ages 9 and 11
2003 HR Neptune 36PBD
300 ISB Cummins/5-Speed


Posted By: Steelsmith on 10/18/11 12:16pm

My coach is a bit smaller, lighter and has a smaller engine. '94 Rexhall 33XL, Cummins 5.9b, Allison MD3060. Rexhall's listed GVWR is 20,500. I am upgrading to the Banks Powerpak and am expecting 10+ MPG towing a CRV. I'll update when we actually hit the road and I have some numbers to work with.
Without the toad, it should make 12+ mpg.

It's all speculation at this point, that and info from the PO who said 'up to 14MPG'!
Dan Stevens


Posted By: Lar's on 10/18/11 02:54pm

ISL 370 @ 36,000 lbs, tag axle, 8 mpg, @62.

Of course, we have gotten 10, and 5.5 at both ends of the wind/hill spectrum.


Lar
Kayaks/Bikes/Hiking Shoes
04 Country Coach
ISL 370
Honda Fit-Auto


Posted By: clnhse on 10/18/11 04:31pm

I do not know what you guys are doing but I do not get those numbers... I had a 08 Dutchstar and I got 6.3... My new Mountainaire has 17 k on it and I am at 6.3..... I average 68MPH..


Posted By: Roadglider09 on 10/18/11 04:37pm

I get a solid 9.5 at 62 mph with my Cummins 8.3, 325hp, towing about 5k pounds of motorcycles.


Michael & Donna
Little Ones Becky & Karen
Deland, FL
2012 Georgetown 350TS
2013 Wrangler Unlimited Toad
Couple of Harleys (when not pulling the Jeep!)


Posted By: sjholt on 10/18/11 05:44pm

I get 10.6 mpg on my 5.9B towing a 3200 lb Subaru Forester at 65 mph over 65,000 miles. 26000 lbs total.


Skip
1996 32' Monaco Windsor DP
Cummins 5.9L 230+ HP
5 Airbags in front- 4 in back


Posted By: vacuumbed on 10/18/11 06:29pm

Does anyone here drive their DP MH at 70-80 MPH? If so, what mileage do you get at that speed?


Posted By: Mr.Mark on 10/18/11 06:54pm

clnhse wrote:

I do not know what you guys are doing but I do not get those numbers... I had a 08 Dutchstar and I got 6.3... My new Mountainaire has 17 k on it and I am at 6.3..... I average 68MPH..


Clnhse, which engine do you have, Cummins or Cat? I was parked next to a guy who had a Beaver with a Cat engine. Our coaches were very similar but he said he never got above 6 mpg's.

Like I mentioned before, I put pencil to paper and calculate my fuel milage on every tank. I also take into account how much of the Aqua-Hot I use along with the Onan since diesel is our only fuel (we are totally electric, no propane).

MM.


Posted By: fcooper on 10/18/11 07:36pm

Cat 330/ 6 spd allison, 26000 lb coach. All fuel consumed since I got the coach averages 8.3 mpg. Most of the time, towing 4400 lb Odyssey with cruise set to 64 and generator running either roof a/c's or heat pumps. Coach weight about 26,000 lbs.
Fred


Fred & Vicki
Richmond Hill, Ga
2000 Holiday Rambler Endeavor/Freightliner/330 Cat
2000 Honda Odyssey toad w SMI Silent Partner braking system
TST507 TPMS


Posted By: missscarlet9 on 10/18/11 07:46pm

I have a 36' - 2000 Monaco with a 5.9l 24v ISB. The original HP was 260, but with a newly factory rebuilt engine (cracked block) in spring of 2011, I also replaced the injectors with Bosch +40hp type. Now pushing 300hp.

On a recent trip through Minnesota, S. and N. Dakota to Saskatchewan, on 3 fills and 1286 miles, I average 11.34 mpg based on US gallons. The old motor got 9.8 mpg at best.

Oh, and kept the speedometer under 65 mph!

My 3 previous MH's (1 propane powered and 2 gas) all were worse than 5 mpg.


Livin' the dream!



Posted By: mdbass on 10/18/11 07:58pm

vacuumbed wrote:

Does anyone here drive their DP MH at 70-80 MPH? If so, what mileage do you get at that speed?


We rarely do, but 70 really knocks the fuel mileage down. We have a 5.9 Cummins and keep it between 60-65 mph towing a Santa Fe. That gets us a solid 10 mpg which we think is pretty good. 70 plus drops it down to around 7 to 7.5. I'm not comfortable driving that fast; especially towing, so we poke along in the low to mid 60's.


Mark Bass


Posted By: sowego on 10/18/11 08:55pm

2002, CAT 330, 38' coach towing a Malibu...8-10 depending on terrain, weather, traffic, etc. We drive approx. 62 mph in higher speed limit zones and 55 in 55 zones. Towing makes a slight difference in mpg as does running the generator while rolling for AC in hot weather.

We found we no longer take exact mpg figures because it simply does not matter except to notice an engine problem. We know approximately how far we wish to space our fuel stops so figure our distances to leave room for more fuel usages in high winds, traffic etc.


2002 Tiffin Phaeton
2005 Malibu Maxx toad



Posted By: JetAonly on 10/19/11 07:05am

vacuumbed wrote:

Does anyone here drive their DP MH at 70-80 MPH? If so, what mileage do you get at that speed?


Ran Nebraska at 75 this summer, got 6.5, also was running genset as it was 102F.


2000 Monaco Dynasty
ISC350


Posted By: bukib on 10/19/11 03:01pm

Here is a realistic viewpoint:
1. If fuel mileage bothers you, you do NOT need a class A motorhome.
2. You certainly do NOT need a diesel pusher with the variance in gas and diesel prices.
3. But if you want a luxury house on wheels with a life expectancy of more than 700,000 miles do it!

p.s. if you are comfortable driving a 25,000 lb. vehicle that is in no way designed aerodynamically 70 mph might i suggest you take up skydiving with ONE parachute as a hobby.


Posted By: randco on 10/19/11 04:34pm

wolfe10 wrote:



Very few absolutes here!


Absolutes? Death and Taxes


Posted By: wolfe10 on 10/19/11 04:37pm

randco wrote:

wolfe10 wrote:



Very few absolutes here!


Absolutes? Death and Taxes


OK, I stand corrected.

Oh, wait a minute-- I know a good tax attorney!


Brett Wolfe
2003 Alpine 38'


FMCA Forum: www.community.fmca.com/index

Diesel RV Club:http://www.dieselrvclub.org/


Posted By: sundancer268 on 10/19/11 05:51pm

Dick A wrote:

The MPG will vary depending on your weight, engine, speed, and terrain. In my case I am about 37K lbs, drive in a fair amount of mountain passes and headwinds. With about 25K miles on the coach driving generally around 665 MPH I have averaged right at 7.0. The electronic metering indicates I would get about 8 MPG if I slowed down to 55 MPH but my foot just has too much lead in the sole.


At 665 Miles per Hour I am surprised you get even .5 miles per Gallon.

With my 23000 pound coach always towing my Focus Wagon I get between 9.5 and 10.5 driving at 58 MPH and gradual acceleration. Of course this is with an over powered 230 HP Mechanical Injection Cummins and an Allison MD3060 six speed.

* This post was edited 10/19/11 07:13pm by sundancer268 *


U. S. Navy (RETIRED) 1993
1995 Gulf Stream Scenic Cruiser 34' Diesel Pusher Cummins B5.9 12 Valve Engine, Allison MD-3060 6 Speed Transmission.
TOAD: 2005 Ford Focus Automatic Station Wagon
Road Master Sterling All-Terrain


Posted By: TEO on 10/19/11 06:08pm

37 ft Winnebago Journey, CAT 330. Just about 8 mpg, but I can't help driving faster than I should.

Paul


Paul & Helen
2002 Winnebago Journey DL
1999 Jeep Cherokee toad
Yellow Lab, Jodie, Chocolate Lab, Coco , and Lab/Golden mix, Sandy.
FMCA 98905
http://ptempesta.blogspot.com


Posted By: BarbaraOK on 10/19/11 06:33pm

After 5 years of fulltiming and over 60K, we get 8.75 mpg with our ~30,000 lb coach pulling a Subaru. We average right about 62 mph - seems to be a sweet spot for the rig. We travel in the west, so lots of up and down the mountains. Lowest mpg is always the 3 days getting from Dallas to Deming, NM - - it is a LOOONG uphill all the way and we ALWAYS have a 30+ mph headwind in our face.

Barb


Barb & Dave O'Keeffe - full-timing since 2006
Traveling catpanion Shadow (age 17)
Figment II (2002 Alpine 36 MDDS)
Mischief
(2004 Subaru Forester Toad)
FMCA - F337834, SKP #90761
Our Blog



Posted By: missscarlet9 on 10/19/11 07:34pm

TEO wrote:

37 ft Winnebago Journey, CAT 330. Just about 8 mpg, but I can't help driving faster than I should.

Paul


That is my problem exactly. When I do 65 mph, I have so much pedal left, it's hard not do do 80. My rig will do it.


Posted By: keepingthelightson on 10/20/11 11:23am

7.5-8.5 towing our 3100# HHR. 40' Tiffin 4 slides 350HP CAT @ 62mph in economy mode. Once you factor in hills and wind, mileage will decrease to around 7mpg.


05 Tiffin Phaeton 40 QDH w/4 slides
CAT C7 350+ HP MP-8, Aero Muffler, AFE Filter
06 HHR LT Toad
Ready Brute Elite


Posted By: keepingthelightson on 10/20/11 11:40am

keepingthelightson wrote:

7.5-8.5 towing our 3100# HHR. 40' Tiffin 4 slides 350HP CAT @ 62mph in economy mode. Once you factor in hills and wind, mileage will decrease to around 7mpg.



Posted By: mci7 on 10/20/11 01:18pm

For me, I have a 2001 Foretravel, ISM500, towing a F150 Ford p/u, I run 70-75 normal, I average 8.2 on last 1227 mile run, mpg is figured by the VMSpc that I find very accurate for many fill ups. Mostly on the cruise control, but I get better mileage on the foot pedal.
Have made a few changes to the engine, biggest was get rid of the muffler and installed a 5" resonator, picked up 2.5 psi additional turbo boost.


Dave M
Central Virginia
Had MCI Conversion 20+ yrs
Presently 2001 Foretravel w/ISM500
Usual Toad 2004 F150 Ford w/Can Am 800 Max


Posted By: JTHarley on 10/20/11 01:52pm

On my last coach, a winnebago Vectra, 36' with a 350 CAT towing a jeep sahara I averaged anywhere from 6.9 - 7.9 mpg cruising at about 60-65 mph. I had about 30K miles on it when I sold it so it was just breaking in.

On my new coach ( I know it's a class 8 conversion) that is 45' and towing the same jeep sahara I am averaging just under 10 mpg and it only has 3K miles on it. A friend who also has a conversion with 50K miles claims to be getting almost 12 mpg while towing. With 140 gallon capacity it sure gives me a much better range and even though it costs more to fill up, I just feel better about it when I travel.


Jim , MJ & Spirit of Sambuca Bear
2005 Prevost Royale XLII
Jeep Sahara Toad


Posted By: Jackha1949 on 10/20/11 03:27pm

On average I get 8.8 mpg with my 05 Journey that has a 350 hp C7 Cat with a 6 spd Allison Transmission. That is towing a 03 Subaru Forester. We average between 60 to 65 mph unless there is strong winds then we slow down to 50 to 55 mph.


Jack & Peg
USN Ret AGC
K1ZMB
Sioux Falls, SD
06 Itasca Horizon 40KD


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