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Open Roads Forum  >  Class A Motorhomes  >  General Topics

 > Fuel Mileage on 8.1 Workhorse

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burgess001

Springfield, MO USA

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Posted: 07/21/21 09:54pm Link  |  Quote  |  Print  |  Notify Moderator

I drove DP's for years. Thinking about a 30 ft Workhorse. What kind of gas mileage can I expect


Jerry and Katie
More than 20 great years motorhoming and still loving it...
2004 DSDP 3810 (more than I needed...less than I wanted)
2004 Trailblazer (too heavy but well worth dragging)

MitchF150

Puyallup, WA

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Posted: 07/21/21 10:41pm Link  |  Quote  |  Print  |  Notify Moderator

Single digits..

Janss

Sedona, AZ

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Posted: 07/22/21 12:02am Link  |  Quote  |  Print  |  Notify Moderator

We usually get 7.x mpg with our 8.1 Workhorse. Don't know if a newer motorhome than ours would be any better.


2002 Itasca Suncruiser 32V
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wildtoad

Blythewood, SC

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Posted: 07/22/21 04:48am Link  |  Quote  |  Print  |  Notify Moderator

It will get better mileage than a Ford V10. But MitchF150 has an accurate and concise answer. When I had a Workhorse on a 30ft depending on conditions got low 8’s to mid 9’s.


Tom Wilds
Blythewood, SC
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wa8yxm

Davison Michigan (East of Flint)

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Posted: 07/22/21 04:50am Link  |  Quote  |  Print  |  Notify Moderator

MPG varies depending on several factors. The RIG below is a Damon Intruder 377W they call it 37' I call it 38, 8.1L workhorse
I"ve seen 6 or less (headwind) and I've seen 13.8 (Ok so the tumble weeds were passing me doing about 100 MPH, I'm not kidding that was one 7734 of tail wind)

Normally about 8 Fresh wax job and no towed I hit 11

The freshness of the wax job seems to make a big difference.


Home was where I park it. but alas the.
2005 Damon Intruder 377 Alas declared a total loss
after a semi "nicked" it. Still have the radios
Kenwood TS-2000, ICOM ID-5100, ID-51A+2, ID-880 REF030C most times


rgatijnet1

Florida

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Posted: 07/22/21 05:01am Link  |  Quote  |  Print  |  Notify Moderator

8MPG is a good average to use. In the Western mountains, and with a toad, I sometimes got as low as 5. To tell the truth, I never really worried about fuel mileage. The 8.1L and Allison transmission got me through every mountain pass and never missed a beat. Plenty of power to climb and keep up with traffic.

fyrflie

Martinez, CA. USA

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Posted: 07/22/21 08:55am Link  |  Quote  |  Print  |  Notify Moderator

2001 Fleetwood Flair 32 foot with 2000 Jeep Wrangler tow vehicle.
June 2021 trip from California to Tennessee and back. 5700 miles.

6.8 - 8.5 mpg @ 70 mph most of the time

Rick Jay

Greater Springfield area, MA

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Posted: 07/22/21 09:07am Link  |  Quote  |  Print  |  Notify Moderator

Hi,

As others have said, I'd expect anywhere between high 6's to low 9's, depending upon terrain, wind, speed, towing/not towing, running the generator and whether or not you put "real gas" into it or the 10% ethanol junk many of us are forced to use.

While it probably doesn't matter too much to the answer of your question, out of curiosity, are you looking at a W-series Workhorse or a P-series Workhorse?

~Rick


2005 Georgie Boy Cruise Master 3625 DS on a Workhorse W-22
Rick, Gail, 1 girl (24-Angel since 2008), 1 girl (20), 2 boys (21 & 18).
2001 Honda Odyssey, Demco Aluminator tow bar & tow plate, SMI Silent Partner brake controller.


Sandia Man

Rio Rancho, NM

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Posted: 07/22/21 09:09am Link  |  Quote  |  Print  |  Notify Moderator

It depends, 7-8 mpg is the average, 5-6mpg in the mountains at elevation, 9-11mpg on the flatlands near sea level. Been using gassers for 3 decades of RVing and have never cared to actually calculate mpg, our current Class A has the 8.1L with Allison 2100 on W24 chassis, it has no problem traversing the many inclines we have here in the mountain west region. Both DIC on our Monaco and our Scangauge2 report MPG tallies which I have very little interest in, we love RVing and don't fret the costs to partake in this beloved endeavor.

ReneeG

Meridian, Idaho

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Posted: 07/22/21 09:52am Link  |  Quote  |  Print  |  Notify Moderator

MitchF150 wrote:

Single digits..

I had to chuckle at this answer due to our past situation. We HAD a gas truck to tow our 35' FW, got 7mpg!! 7 . . . switched to diesel and in the double digits now.


2011 Bighorn 3055RL
2011 F350 DRW 6.7L 4x4 Diesel Lariat and Hensley BD3
1992 Jeep ZJ and 1978 Coleman Concord Pop-Up for remote camping
Dave & Renee plus (Champ, Molly, Paris, Missy, and Maggie in spirit), Mica and Mabel, both Rat Terriers!


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