EPDM Coatings
rvupgradestore.com Composet Products PO Box Zone
Over The Network Custom Yacht Interiors

Author Topic: mpg??  (Read 791 times)

DTM

  • ---
  • Posts: 19
mpg??
« on: August 27, 2017, 08:08:11 PM »
Could you please post your mpg and type of fuel and length and type of motor home.......we are looking to purchase an used class A and some of the information I am getting from sellers seems a little inflated....Thanks so much!!!!

SeilerBird

  • ---
  • Posts: 10644
  • Everything I state is my opinion.
Re: mpg??
« Reply #1 on: August 27, 2017, 08:15:27 PM »
Just about all motor homes get around 8 mpg. The length has nothing to do with mpg. The front of a motor home presents drag and that is the most important factor besides speed. Weight, length, type of RV, type of fuel don't enter into the discussion. Yep, sellers will lie to sell their motor home.
I would like to apologize to anyone I have not yet offended. Please be patient and I will get to you shortly.
Life list of birds:
https://goo.gl/photos/xuP9zPD2KP2swN1g8
2016 photos:
https://goo.gl/photos/aXQPbnVpgzNvs4Jq8
My portfolio:
https://goo.gl/photos/Cx4SaYhGfYFShSty7

Larry N.

  • ---
  • Posts: 4372
  • Westminster, CO
Re: mpg??
« Reply #2 on: August 27, 2017, 08:28:04 PM »
Gas or diesel?

Quote
Just about all motor homes get around 8 mpg.
My Beaver got 5-6 (525HP, 50K lbs), My Ventana gets 7-9, depending on conditions, such as wind, hills, traffic speeds. Few will get much over 9, most will do 6.5 or more most of the time. So Tom hit a good average, I'd say. Unless you drive it in town a lot, then the stop and go can kill mileage- the Beaver probably wouldn't do more than 2-3 mpg in stop and go operation.
Larry and Mary Ann N.
2016 Newmar Ventana 3709 -ISB6.7 XT 360HP
2015 Wrangler Sahara Unlimited toad
Formerly: Trailmanor 2720SL
  de N8GGG

Tom

  • Administrator
  • ---
  • *
  • Posts: 44383
    • RV Forum web site
Re: mpg??
« Reply #3 on: August 27, 2017, 08:31:16 PM »
Is this a gas or diesel motorhome, and I'd like to know something about the age, make, and chassis. MPG does vary, with old gas coaches getting 6-6.5 MPG Newer diesels get 8-9 MPG. It also depends on the loaded weight of the coach and if towing something and the towed weight.
Tom.  Need help? Click the Help button in the toolbar above.

DTM

  • ---
  • Posts: 19
Re: mpg??
« Reply #4 on: August 27, 2017, 08:38:18 PM »
we were told a 36' gas class gets between 7-13 mpg, with an average of 9 mpg.............
a 38.6 diesel gets 7-7.5 mpg

per sellers




Howard R

  • ---
  • Posts: 541
Re: mpg??
« Reply #5 on: August 27, 2017, 08:39:45 PM »
2001 Fleetwood Southwind, 35 R(35 feet),  F53 chassis, V10, weight 20500 #, normally drive 60-65, getting about 7mpg.

Previous was a 28 foot 1999 Coachmen Mirada, P-32 chassis, 454, weight usually about 15000 to 15500# (Max was 16500#) ... (ran out of room before running out of weight).  Kept detailed numbers and averaged 9.6 over maybe 30,000 miles or more.  Both are gas engines.

If we're talking about carrying say 100 gallons of water, about 800 pounds, I don't feel it makes much difference and the Mirada actually rode better with a full tank.  I'd rather have the water.  As SeilerBird said it's more a function of that high drag square front end and speed.

Howard
2001 Fleetwood Southwind 35R
V10   F53
2003 Jeep Liberty Toad
Minnesota

Sun2Retire

  • Photo moderator
  • ---
  • *
  • Posts: 1838
Re: mpg??
« Reply #6 on: August 27, 2017, 09:02:58 PM »
38 foot pusher, 7.5.


I'd be amazed if a 36' gas got 9, let alone 13.
Scott
2005 Newmar Dutch Star 3810, Spartan, Cat C7 350 "OURVEE"
Eezrv TPMS, VMSpc, 800W Solar
2002 Dodge RAM 1500 Quad Cab "RTOAD"
Stowmaster towbar & Brakemaster

Tom

  • Administrator
  • ---
  • *
  • Posts: 44383
    • RV Forum web site
Re: mpg??
« Reply #7 on: August 27, 2017, 09:15:43 PM »
FWIW our 1985 29 foot gas Pace Arrow on a Chevy chassis got 6.5 MPG solo and 6.0 towing a boat or SUV.

Quote
we were told a 36' gas class gets between 7-13 mpg, with an average of 9 mpg.............a 38.6 diesel gets 7-7.5 mpg

Please answer my questions:

"Is this a gas or diesel motorhome, and I'd like to know something about the age, make, and chassis. MPG does vary, with old gas coaches getting 6-6.5 MPG Newer diesels get 8-9 MPG. It also depends on the loaded weight of the coach and if towing something and the towed weight."
« Last Edit: August 28, 2017, 08:56:00 AM by Tom »
Tom.  Need help? Click the Help button in the toolbar above.

BinaryBob

  • Forum Staff
  • ---
  • *
  • Posts: 1620
Re: mpg??
« Reply #8 on: August 27, 2017, 09:33:59 PM »
7.5 here.
13 mpg? I did reach 12 once, briefly, while heading west on a flat interstate with an epic tail wind.
2004 Itasca Suncruiser 37B

"Every hobby perpetuates its arcane mysteries. How else would we impress the newbies with our superior knowledge?"
--Gary RV Roamer--

WILDEBILL308

  • ---
  • Posts: 2332
Re: mpg??
« Reply #9 on: August 27, 2017, 09:48:12 PM »
Could you please post your mpg and type of fuel and length and type of motor home.......we are looking to purchase an used class A and some of the information I am getting from sellers seems a little inflated....Thanks so much!!!!
Lots of good answers so far. As you haven't answered the questions asked I can't give a better answer. Do a search of the forums this is a very common thread.
Bill
2003 Bounder 38N
300 HP 5.9 Cummins
Allison 3000MH Trans.
Towing 2014 Honda CRV
Home base Fort Worth, Texas
A man who carries a cat by the tail learns something he can learn in no other way.
-Mark Twain-

John Stephens

  • ---
  • Posts: 374
Re: mpg??
« Reply #10 on: August 27, 2017, 09:56:27 PM »
There are a lot of factors that can make your mileage vary, including how you drive the rig and at what speed. I have a 39' Winnebago Adventurer gasser. When I got it, it averaged 8.0 on flat ground in Florida doing 60 mph and only got worse in city or mountain traffic all the way down to about 6.0. Every mph faster that I drove cost me a tenth of a mpg. I got it tuned up and expected better mileage, but couldn't make a comparison because I began towing my car behind it and was only getting about 6.5 on flat ground.

A few weeks ago, getting the coach ready for the vacation I am presently on, I had to get the entire cab a/c system replaced. As the mechanic charged me $1300 to fix it, he told me ironically that I should think about using the generator and coach a/c instead of the cab a/c because I would get better mileage since the cab a/c takes about 25hp from the engine. I have tried it while on the road this time and have noticed a drastic difference. Averaging 62 mph and using the cruise control every chance I get when not in mountains, I am getting between 7.8 and 8.6 per the coach's computer. Since the generator takes about gal per hour, the actual mileage calculated from fill up to fill up is about 7 mpg, where last year running the cab a/c, I averaged about 5.5. And this is with towing my car. I'm quite pleased with the results of my mechanic's suggestion.
John

2005 Winnebago Adventurer 38J

Mile High

  • ---
  • Posts: 657
Re: mpg??
« Reply #11 on: August 27, 2017, 11:42:27 PM »
7.5 pretty consistent 43.5 ft 400 hp pusher pulling a Jeep.
Brad and Dory
2013 Winnebago Itasca Meridian 42E (new to us 2016)
2013 Jeep Wrangler Unlimited Sahara
FMCA 457993 / WIT W170238
Denver, CO

phil-t

  • ---
  • Posts: 52
  • Here For The Duration
Re: mpg??
« Reply #12 on: August 28, 2017, 03:19:02 AM »
2010 33' Winnebago Vista 32K on a  2009 Ford F53 V10 gas chassis  and 10,000 miles on the odometer --  Just completed a 2000 mile round trip from Northern NY to NW South Carolina. Mostly Interstate driving at ~62MPH flat towing a 3800 lb. toad.
Average for the trip was 6.7 mpg.  Best was one tank at 6.9 mpg.
Weight, speed and tow will make a difference.  We are planning a couple short outings with no toad - will see the difference.
« Last Edit: August 28, 2017, 03:21:29 AM by phil-t »
2010 Winnebago Vista 32K on an F53 Ford V-10 gas chassis.
2014 Cadillac SRX in tow.
CHF, DIY rear TrackBar

demag88

  • ---
  • Posts: 30
  • paul&retta
Re: mpg??
« Reply #13 on: August 28, 2017, 05:23:55 AM »
1999 pace arrow vision towing a wrangler 6.5
1999 pace arrow

Peteyboy

  • ---
  • Posts: 350
Re: mpg??
« Reply #14 on: August 28, 2017, 06:24:00 AM »
Winnebago 37F Ford V-10 towing a CRV,,,, 6.5.
Pete & Sandy
2015 Itasca Suncruiser 37F
11 CRV

GaryA

  • ---
  • Posts: 81
Re: mpg??
« Reply #15 on: August 28, 2017, 07:26:35 AM »
2014 30 ft. Class C, Ford V10, CRV toad.  7.1 was my worst and average about 7.4.  About 1/2 of my miles are interstate between 60 and 65, the other 1/2 of the miles are state roads and the like.
Gary Alexander
2014 Thor 28z
Waxhaw, NC

Ernie n Tara

  • ---
  • Posts: 3233
  • Life is Good - Together
Re: mpg??
« Reply #16 on: August 28, 2017, 08:15:19 AM »
Just to provide a little perspective consider that:

a. Aerodynamic drag is, on the open road, 80% plus of total drag.

b. The difference in drag between 55 mph and 70 mph is about 100% higher at 70.

You control the mileage! ;D

Ernie

Ernie 'n Tara

2011 Winn Journey 34y
2012 Jeep Rubicon - Dozer (orange - kinda)
2006 Jeep Wrangler

Tom

  • Administrator
  • ---
  • *
  • Posts: 44383
    • RV Forum web site
Re: mpg??
« Reply #17 on: August 28, 2017, 08:55:04 AM »
Quote from: Ernie n Tara
The difference in drag between 55 mph and 70 mph is about 100% higher at 70. You control the mileage!

Right on Ernie. We see a significant difference in mpg when we re-enter California with its 55mph speed limit for a vehicle towing. (We tow a Suburban behind the motorhome).
Tom.  Need help? Click the Help button in the toolbar above.

Dragginourbedaround

  • ---
  • Posts: 763
  • I look out the window and see trees, I'm camping
Re: mpg??
« Reply #18 on: August 28, 2017, 09:17:17 AM »
Quote
Since the generator takes about gal per hour, the actual mileage calculated from fill up to fill up is about 7 mpg, where last year running the cab a/c, I averaged about 5.5. And this is with towing my car. I'm quite pleased with the results of my mechanic's suggestion.


I've always used a gallon an hour as a rule of thumb.


2013 Winnebago Adventurer 37F we avg 7.5 mpg whether towing our Honda Fit or not.
Gene

2013 Winnebago Adventurer 37F
2011 Honda Fit

kdbgoat

  • ---
  • Posts: 3961
Re: mpg??
« Reply #19 on: August 28, 2017, 11:00:18 AM »
Class C in sig, V-10 getting 7.9-8.0 so far. 65 mph max on interstates, hand calculated figures, no guessing gauge on this coach.
I know you believe you understand what you think I said,
But I am not sure you realize what you heard is not what I meant


2016 Leprechaun 319DS

Dorian

  • ---
  • Posts: 43
    • My Linux YouTube Channel
Re: mpg??
« Reply #20 on: August 28, 2017, 11:10:11 AM »
Wow! I didn't know they used that much gas! Here I was complaining about my f150 getting 12 mpg towing my TT lol  The wife has mentioned a full motorhome before, I'll have to show her this thread heheh

SeilerBird

  • ---
  • Posts: 10644
  • Everything I state is my opinion.
Re: mpg??
« Reply #21 on: August 28, 2017, 11:51:49 AM »
Wow! I didn't know they used that much gas! Here I was complaining about my f150 getting 12 mpg towing my TT lol  The wife has mentioned a full motorhome before, I'll have to show her this thread heheh
You spend 95% of your time living in a RV and 5% driving it. I feel it is unwise to make a purchase of an RV on the basis of gas mileage. That is like marrying Dolly Parton because you think she might be a good cook.
I would like to apologize to anyone I have not yet offended. Please be patient and I will get to you shortly.
Life list of birds:
https://goo.gl/photos/xuP9zPD2KP2swN1g8
2016 photos:
https://goo.gl/photos/aXQPbnVpgzNvs4Jq8
My portfolio:
https://goo.gl/photos/Cx4SaYhGfYFShSty7

Dorian

  • ---
  • Posts: 43
    • My Linux YouTube Channel
Re: mpg??
« Reply #22 on: August 28, 2017, 12:11:10 PM »
Haha good point!  We're just weekenders with the occasional 4-5 day trips per summer, but for some reason the wife thinks a MH would be a good idea :P

spacenorman

  • ---
  • Posts: 248
Re: mpg??
« Reply #23 on: August 28, 2017, 12:32:46 PM »
We're in a 44' DP ... 405 MaxForce Engine.   We typically get between 7 and 7.5 MPG.  Note that tried and true method of calculating MPG of "Miles driven divided by # of Gallons added" gets skewed a bit by both Aquahot use as well as generator use - so you've got to take that into consideration when calculating your actual mileage results - recognizing that the calculation of your actual engine fuel use may have been impacted by fuel used by the generator or your Aquahot.
The Spacenorman
2012 Holiday Rambler Endeavor 43 DFT
2012 Jeep Liberty
http://www.penquinhead.com/

Oldgator73

  • ---
  • Posts: 553
Re: mpg??
« Reply #24 on: August 28, 2017, 12:35:40 PM »
You spend 95% of your time living in a RV and 5% driving it. I feel it is unwise to make a purchase of an RV on the basis of gas mileage. That is like marrying Dolly Parton because you think she might be a good cook.

Dolly Parton can't cook?
2016 Winnebago Winnie Drop
2016 Nissan Frontier 4x4 Crew Cab
Air Force Retired
It's not the weight of the load, it's how you carry it.

SeilerBird

  • ---
  • Posts: 10644
  • Everything I state is my opinion.
Re: mpg??
« Reply #25 on: August 28, 2017, 01:01:37 PM »
Haha good point!  We're just weekenders with the occasional 4-5 day trips per summer, but for some reason the wife thinks a MH would be a good idea :P
A motor home is a great idea for many reasons, gas mileage being the least of these reasons.
I would like to apologize to anyone I have not yet offended. Please be patient and I will get to you shortly.
Life list of birds:
https://goo.gl/photos/xuP9zPD2KP2swN1g8
2016 photos:
https://goo.gl/photos/aXQPbnVpgzNvs4Jq8
My portfolio:
https://goo.gl/photos/Cx4SaYhGfYFShSty7

A Traveler

  • ---
  • Posts: 98
Re: mpg??
« Reply #26 on: August 28, 2017, 01:40:25 PM »
we were told a 36' gas class gets between 7-13 mpg...
per sellers

You were told wrong. You will never consistently see double digit miles per gallon numbers in any 30+ foot motorhome.

6 to 8 is what you will get over the long haul. Gas or diesel, it doesn't matter...6 to 8 is it.

SeilerBird

  • ---
  • Posts: 10644
  • Everything I state is my opinion.
Re: mpg??
« Reply #27 on: August 28, 2017, 01:43:03 PM »
we were told a 36' gas class gets between 7-13 mpg, with an average of 9 mpg.............
a 38.6 diesel gets 7-7.5 mpg

per sellers
Well the sellers aren't going to be honest.
I would like to apologize to anyone I have not yet offended. Please be patient and I will get to you shortly.
Life list of birds:
https://goo.gl/photos/xuP9zPD2KP2swN1g8
2016 photos:
https://goo.gl/photos/aXQPbnVpgzNvs4Jq8
My portfolio:
https://goo.gl/photos/Cx4SaYhGfYFShSty7

SissyBoyFloyd

  • ---
  • Posts: 103
  • If we aren't laughing, we aren't living!
    • The Spirit Within
Re: mpg??
« Reply #28 on: August 28, 2017, 02:07:54 PM »
2001 Winnebago Realta - 22 mpg while going up and over the Rockies.  Try topping that.  Not even my stick shift VW camper from 1971 did any better than that.
Pawnee,
Buffalo Hunter

Oldgator73

  • ---
  • Posts: 553
Re: mpg??
« Reply #29 on: August 28, 2017, 02:44:39 PM »
2001 Winnebago Realta - 22 mpg while going up and over the Rockies.  Try topping that.  Not even my stick shift VW camper from 1971 did any better than that.

Were you behind pushing?
2016 Winnebago Winnie Drop
2016 Nissan Frontier 4x4 Crew Cab
Air Force Retired
It's not the weight of the load, it's how you carry it.

wae

  • ---
  • Posts: 50
Re: mpg??
« Reply #30 on: August 28, 2017, 03:10:24 PM »
1993 32ft Itasca Suncruiser class A.  Gas 454.  I can get 7.5mpg as unladen as I can make it (empty black/grey tanks and 20ish gallons in the fresh tank).  If I load it up with water, hook up the trailer with the car, and run the generator the whole time I get about 7mpg.  If I slow it down and keep it at 50-55 mph, I can eek another .25mpg out of it, plus or minus.

Basically, I just try not to think about it too much.  I only do the math at each fuel stop as an early-warning system for mechanical issues.
1993 Itasca Suncruiser 32RQ / Chevy 7.4

ArdraF

  • ---
  • Posts: 9652
Re: mpg??
« Reply #31 on: August 28, 2017, 06:07:05 PM »
Yes, five motorhomes (C & A, gas & diesel) over the years and 7-8 mpg is about right.  Many things affect it - terrain, speed, Aqua Hot, generator running roof air conditioning, altitude, and most of all your foot.  Current diesel pusher at 114,000 miles engine computer says our average is about 7.6 mpg.

ArdraF
« Last Edit: August 28, 2017, 06:09:51 PM by ArdraF »
ArdraF
:D :D

beaverfever

  • ---
  • Posts: 399
Re: mpg??
« Reply #32 on: August 28, 2017, 06:21:18 PM »
if you have to worry about fuel mileage you need to find a different hobby because they all are horrible or just grin and bear it like the rest of us.

8Muddypaws

  • ---
  • Posts: 2235
Re: mpg??
« Reply #33 on: August 28, 2017, 07:46:35 PM »
A Prius gets 50 MPG and weigh about 2500 pounds.  So it gets a score of 125,000.

My motorhome gets an average of 7 and weighs 25000.  A score of 175,000.  Thus it's more efficient on a pound per pound basis.
Retired computer professional
Musician, songwriter and music director
2006 Bounder 34H, 2008 CR-V Toad

A Traveler

  • ---
  • Posts: 98
Re: mpg??
« Reply #34 on: August 28, 2017, 08:04:10 PM »
2001 Winnebago Realta - 22 mpg while going up and over the Rockies.  Try topping that.  Not even my stick shift VW camper from 1971 did any better than that.

A tiny little Rialta (spelling is correct) is not a "motor home" in the context of this thread. It's a van with a little 2.8 liter V6 engine.

Posts like this do not help further this discussion or help the OP in his learning process.

And I don't believe your claim of 22 mpg in the mountains, either.

SeilerBird

  • ---
  • Posts: 10644
  • Everything I state is my opinion.
Re: mpg??
« Reply #35 on: August 28, 2017, 08:07:16 PM »
A tiny little Rialta (spelling is correct) is not a "motor home" in the context of this thread. It's a van with a little 2.8 liter V6 engine.

Posts like this do not help further this discussion or help the OP in his learning process.

And I don't believe your claim of 22 mpg in the mountains, either.
^^^^ :)) :)) :)) :))
I would like to apologize to anyone I have not yet offended. Please be patient and I will get to you shortly.
Life list of birds:
https://goo.gl/photos/xuP9zPD2KP2swN1g8
2016 photos:
https://goo.gl/photos/aXQPbnVpgzNvs4Jq8
My portfolio:
https://goo.gl/photos/Cx4SaYhGfYFShSty7

Dorian

  • ---
  • Posts: 43
    • My Linux YouTube Channel
Re: mpg??
« Reply #36 on: August 29, 2017, 09:02:17 AM »
A tiny little Rialta (spelling is correct) is not a "motor home" in the context of this thread. It's a van with a little 2.8 liter V6 engine.

Posts like this do not help further this discussion or help the OP in his learning process.

And I don't believe your claim of 22 mpg in the mountains, either.

Agreed.  Perhaps completely unloaded on flat ground doing 50-60 mph might get you 20 at most.  My f150's 2.7 v6 ecoboost gets 22 mpg through the rockies completely unloaded...  ::)

 

Hosted by Over The Network