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 > Approximate fuel milage of these 2 motorhomes?l

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aswagerty14

Texas

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Posted: 07/13/21 07:44pm Link  |  Quote  |  Print  |  Notify Moderator

We are choosing between 2 motorhomes and it is coming down to fuel mileage, does anyone know about how many mpg these 2 would get and would the difference be significant enough to make it the decision maker? Holiday rambler diesel 5.9 L or Fleetwood pacearrow gas Ford 460 both on 37 ft class a's. I know the diesel will get better fuel mileage but by how much? Thank you!

Old-Biscuit

Verde Valley

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Posted: 07/13/21 08:16pm Link  |  Quote  |  Print  |  Notify Moderator

Diesel/Gas MHs

Lot more high cost differences between them then MPG

8 MPG is lucky

* This post was edited 07/13/21 08:56pm by Old-Biscuit *


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supercub

Modesto CA

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Posted: 07/13/21 08:52pm Link  |  Quote  |  Print  |  Notify Moderator

Most Class A motorhomes, gas or diesel get +/-8 mpg..........I 've had a couple of each and that's about where all of them ended up.
I'd much rather have a diesel then a gas. Quieter ride, typically a smoother ride with air bags, and handle better too.

Trackrig

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Posted: 07/14/21 12:55am Link  |  Quote  |  Print  |  Notify Moderator

Are you really going to put enough miles on it to worry about fuel usage? We've owned our DP with a Cat C7 for about nine years and only put 40,000 miles on it. That averages out to 4,444 miles per year. At the most, one of them may doe 1 mpg better than the other, so what? Take the diesel.

Bill


Nodwell RN110 out moose hunting. 4-53 Detroit, Clark 5 spd, 40" wide tracks, 10:00x20 tires, 16,000# capacity, 22,000# weight. You know the mud is getting deep when it's coming in the doors.


Ranger Smith

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Posted: 07/14/21 05:06am Link  |  Quote  |  Print  |  Notify Moderator

The difference in mileage will not be noticeable between the 2 of them. I'de go with the diesel and scrap the gasser. The ride of the diesel is nicer and it does not "scream" going up hills like the gasser will. Also with the engine in the front the gasser gets hotter in the cab and it is harder to talk to each other.


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georgelesley

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Posted: 07/14/21 05:50am Link  |  Quote  |  Print  |  Notify Moderator

Floorplan is much more important than fuel mileage. If you or DW, especially DW, do not like the floorplan your fuel mileage will be unlimited since you will not use it for very long and it will just sit in your yard.

As posted above by others, in the final analysis, MPG is a minor consideration compared to other costs and if you like it well enough to actually use it. The 8 number is in the ballpark for most of them and towing a toad cuts ours by 1 MPG.


George 20 yr USAF & Lesley

RetiredRealtorRick

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Posted: 07/14/21 06:01am Link  |  Quote  |  Print  |  Notify Moderator

You will not find a better diesel engine than the 5.9 Cummins. Period. Case closed. End of story.

That being said, you might see the difference between 8 - 9 on a gas motorhome and 10 - 11 on the 5.9 diesel (speaking from first-hand experience with both), HOWEVER, factor in the higher price of the diesel fuel. Around here I've seen it anywhere from 20 cents a gallon to 80 cents a gallon higher than regular unleaded. Percentage-wise at best it's a wash, but I wouldn't let fuel economy be the sole deciding factor.


. . . never confuse education with intelligence

Ivylog

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Posted: 07/14/21 06:23am Link  |  Quote  |  Print  |  Notify Moderator

MPG is not in the top 10 of decisions on which MH I’d buy. Agree the 5.9 winds hands down and will probably get 10 mph…educates guess without knowing the weight of the MH and the HP of the 5.9.


This post is my opinion (free advice). It is not intended to influence anyone's judgment nor do I advocate anyone do what I propose.
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LouLawrence

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Posted: 07/14/21 07:27am Link  |  Quote  |  Print  |  Notify Moderator

Even if you got an extra 3 MPG choosing one over the other. Traveling 10,000 miles per year (highly unlikely you would travel that much) the year difference would be minimal. At 10 MPG you would use 1000 gallons or around $3500. If you only got 7 miles to the gallon you would use 1429 gallons or around $5000. That $1500 per year is not going to make any difference in the overall cost of ownership or make the RV any better or worse. Floor plan, floor plan, floor plan #1 and ride, handling comfort #2 (that means the improvements brought on by owning a diesel pusher.

Rick Jay

Greater Springfield area, MA

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Posted: 07/14/21 07:35am Link  |  Quote  |  Print  |  Notify Moderator

aswagerty14,

Welcome to the Forums! Is this your first RV you're looking to purchase?

As a few others have noted, I'd put floorplan above just about any other deciding factor, except condition, of course. Do both of the units you're looking at have the same floorplan? If so, then you can nit-pick at other things. If not, you need to carefully study each floorplan to see what will work best for you. Some examples: There are split-baths and all-in-one baths. If you have kids, I think the all-in-one baths are a better option. But if it's just a couple, some prefer the split-baths. Some rigs have bath and a half. Some have sofa(s) and a dinette. Some have free standing table and chairs in stead of the dinette. Some have a sofa and/or lounge chairs. Queen bed/kind bed/bunk beds/drop-down bed? Which cabinets and drawers are inaccessible when the slides are in? (Important if/when you're travelling on the road and can't extend the slides.) Lots of things to consider. These are things that IF they're not right for you, will wear at you much more so than a few mpg difference. georgelesley said it best above "If you or DW, especially DW, do not like the floorplan your fuel mileage will be unlimited since you will not use it for very long and it will just sit in your yard." And one other thing to remember is that in many parts of the country and at different periods in the recent past, diesel fuel costs more than gasoline. So the extra mpg diesel delivers may be offset somewhat by the added cost of the fuel.

Have you been able to drive each of them? It's usually the driving experience that sells folks on the diesel over the gasser. If you're just looking at papers & websites, you are doing yourself a disservice in trying to decide between gas & diesel.

There ARE substantial differences between a DP and a gasser Class A motorhome, but like many others have said, I wouldn't make the decision on mpg differences.

Good Luck in your decision, [emoticon]

~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.


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