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Morguns1cam 02-01-2019 10:44 AM


Originally Posted by lowhut (Post 4612670)
You don't buy a diesel pusher if you are concerned with mpg. Just fill the tank and go and enjoy. Most will get right at 8.

Bingo! mine (1998 36' Windsor, 300hp cummins) gets about 8 towing a jeep.

Danesrus3 02-01-2019 11:07 AM

8-9 MPG @ 62-65 MPH, have 2011 Berkshire 38' DP with toad 340 HP

PandS 02-01-2019 01:59 PM

Newmar 43' Ventana with 8.9 ISL and 3000 Allison transmission. Weight is 42,000 lbs give or take a little, flat towing a Honda CRV.

Right around 7 MPG in traffic. -Paul

Hit_the_Rhod 02-01-2019 02:01 PM


Originally Posted by wilburn (Post 4604582)
2001 Newmar Dutch Star 3858 CAT 3126B 300HP FL chassis. Around 8 mpg MAX w/Cruise set for 62. No tow. Mostly flat Interstate.

We have similar coach. 2001 Newmar Dutch Star 3851, same engine and chassis as you, we tow a LOADED GMC Canyon, full water, stuff in bays, we've gotten as low as 6.2 mpg, as high as 8.4 mph measured by miles driven and fuel put in, NOT an electronic measure devise that may or may not be "weighted" to make people feel better about their rigs!

If running a generator, it adds .332 gallons/hour to fuel consumption (figured over a 98 hour continuous run, using AC etc) RV was filled w/ diesel, driven about 5 miles to location, ran 98 hours, drove back to same gas station, same pump (same slant to the pump parking area), filled up full, deducted 10.6 miles at 7.4mpg for drive. I figure 1/3 gallons/hr is pretty accurate, but I still use 1/2 gallon/hr for planning purposes.

We drive from 62 to 70 mph on the interstate.

I get a kick out of those people who are driving 40+ foot Class A's and are claiming to get over 10mpg!:D

FastHobie16 02-08-2019 02:52 PM

MPG. ?
I have. 2000 Monaco 40í Dynasty GVR 32000# pulling a 2004 Jeep Liberty. Iíve averaged 9 mpg pretty much constantly. I drive 65 mph on the hwy. Donít take off fast either. Cummins 350 ISC w/ Allison 6 speed auto. I also add a qt. of cheep automatic trans fluid at fill ups for lubrication for the fuel system. The low sulfur diesel fuel dries out o rings and it helps injectiors too. ( its oil , it burns.)
Guardrail 53 has it right. Maintain your MH and use it. Donít let it sit for more than a month. MOVE IT.
Excersize the generator, A/Cís etc
Most of my driving in the Southern US.
PS.... I have an AquaHot diesel boiler system which has a small effect on my mileage. ( It isnít running all the time).

RWDJR. 02-08-2019 06:18 PM


Originally Posted by RWDJR. (Post 4614496)
The smile on my face when Iím driving my still new to me DP tells me Iím not to concerned about mpgs lol. If I were to guess, itís about 8. Leaving Sunday, will do a real math check and get back.

With a lot of idling in the drive, and running the genny and aqua hot, 7.1 mpg doing 65.

RWDJR. 02-09-2019 05:36 PM


Originally Posted by RWDJR. (Post 4627718)
With a lot of idling in the drive, and running the genny and aqua hot, 7.1 mpg doing 65.

One more time. Last fuel stop. 8.3 mpg, 65 mph.

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