Coast Resorts Open Roads Forum: Best MPG from most popular MH engines
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 > Best MPG from most popular MH engines

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chattannooga

Hixson, TN

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Posted: 10/10/13 08:21am Link  |  Quote  |  Print  |  Notify Moderator

I'm in the market for an older Class C. Most of the ones I look at are powered by Ford 460 V-8, Chevy 350 V-8 and Dodge 440 V-8. I realize that MPG varies greatly by engine size, weight of MH and speed. Is there any consensus, all variables being as near equal as possible, which of these engines will deliver the greatest MPG? I know this is an apples vs. oranges comparison but would appreciate any guidance from forum members.

carringb

Corvallis, OR

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Posted: 10/10/13 08:51am Link  |  Quote  |  Print  |  Notify Moderator

Motorhome profile has a bigger affect than engine. On a smaller C, a small block will use less fuel, but on a larger rig the small block could be working so hard it may use more fuel than a big block. When comparing pushrod engines, they will all be about the same when you compare similar displacements.


Bryan

2000 Ford E350 DRW Wagon, V10 - 400,000+ miles!
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mikeleblanc413

Texas

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Posted: 10/10/13 09:00am Link  |  Quote  |  Print  |  Notify Moderator

When I was gathering information at this forum for my...almost 2 years ago...I received a lot of comments suggesting to seriously consider the V10...I did and am very pleased with the power...the purchase was a 2000 Winnebago Minnie Winnie...initially I got 8 mpg on the road...refining my driving I can regularly get 10 mpg...I do keep records...not as detailed as some...don't go over 55...don't jack rabbit start...don't try to be the first to the top of the hill...I don't use cruise control...I have gotten 11 mpg a couple of times...I do get 10 mpg consistently...that's what I got with my Dodge dually pulling a 34 foot 5th wheel...I'm pleased!


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pianotuna

Regina, SK, Canada

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Posted: 10/10/13 09:27am Link  |  Quote  |  Print  |  Notify Moderator

Hi,

If you want better mileage then drive only with the wind.

Seriously, think about adding air foil technology. Sleepy has an airfoil in the truck camper "university"


Regards, Don
Full Time in a 28 foot Class C, 256 watts solar, 556 amp hours of AGM in two battery banks 12 volt batteries, 3000 watt Magnum hybrid inverter, Sola Basic Autoformer, Microair Easy Start.

Mich F

Plantation, Fl

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Posted: 10/10/13 09:28am Link  |  Quote  |  Print  |  Notify Moderator

I'd suggest, if at all possible you start looking at some newer motor homes. I believe 1978 was the last year the 440 was made, so it probably wouldn't be in anything newer than a 1979. Ford I believe replaced the 460 in the 1997 model year with the V10. so anything newer than 1978, if not 1997 would have the V10, or it could have the 5.4L. As far as the 350, I think that just morphed into the 5.7L.
I had a 5.7L Chevy/GM in a 1995 22'long, 8,910# MH. Mileage was maybe 8MPG. I considered it just barely adequate for that application.
I have the V10 in a 24', 9,622# MH that got 10.4 MPG. over 4 years of tracking. It has plenty of power.
I also have the V10 in a 32 1/2' ~11,500# MH that is getting between 8 and 9 MPG so far. It also is quite up to the task.
As somewhat of a comparison on the 350/5.7L . In between these motor homes I had a 2004 5.4L F250, that with a slide in camper weighed 8,700#. I frequently got over 9MPG while towing a heavy boat. It put the 5.7L Chevy to shame as far as performance.


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Az.

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Posted: 10/10/13 09:58am Link  |  Quote  |  Print  |  Notify Moderator

Easy, the 350 with a SuperCharger on it. Far more power then the others and yet far the best mpg.


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midnightsadie

ohio

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Posted: 10/10/13 10:12am Link  |  Quote  |  Print  |  Notify Moderator

if your looking mpg look at diesels the ones with v6 or the 5cyc mercedes benz diesel.

87mobiletraveler

home

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Posted: 10/10/13 11:03am Link  |  Quote  |  Print  |  Notify Moderator

Try to find one with fuel injection and overdrive transmisson,good luck

chattannooga

Hixson, TN

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Posted: 10/10/13 11:24am Link  |  Quote  |  Print  |  Notify Moderator

Thanks for the advice. It confirms my suspicions that that most MH 8 or 10 cylinder engines get from 8 to 11 MPG under normal driving and hauling conditions. Want more get a diesel or six-cylinder gas engine.

Kit Carson

Bossier City, La.

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Posted: 10/10/13 12:33pm Link  |  Quote  |  Print  |  Notify Moderator

mikeleblanc413 wrote:

When I was gathering information at this forum for my...almost 2 years ago...I received a lot of comments suggesting to seriously consider the V10...I did and am very pleased with the power...the purchase was a 2000 Winnebago Minnie Winnie...initially I got 8 mpg on the road...refining my driving I can regularly get 10 mpg...I do keep records...not as detailed as some...don't go over 55...don't jack rabbit start...don't try to be the first to the top of the hill...I don't use cruise control...I have gotten 11 mpg a couple of times...I do get 10 mpg consistently...that's what I got with my Dodge dually pulling a 34 foot 5th wheel...I'm pleased!
Just wondering if using cruise control is detrimental to achieving a reasonable MPG. I use my cruise control on flat ground but not up and down hills. Maybe I should not use it at all. My unit is a 29' Winnebago Class C and I average about 8 MPG w/o toad.


KIT CARSON
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