Journey with Confidence RV GPS App RV Trip Planner RV LIFE Campground Reviews RV Maintenance Take a Speed Test Free 7 Day Trial ×
RV Trip Planning Discussions

Go Back   iRV2 Forums > MOTORHOME FORUMS > Class C Motorhome Discussions
Click Here to Login
Register FilesVendors Registry Blogs FAQ Community Calendar Today's Posts Search Log in
Join iRV2 Today

Mission Statement: Supporting thoughtful exchange of knowledge, values and experience among RV enthusiasts.
Reply
  This discussion is proudly sponsored by:
Please support our sponsors and let them know you heard about their products on iRV2
 
Thread Tools Search this Thread Display Modes
 
Old 09-14-2012, 01:06 PM   #1
Member
 
Forest River Owners Club
Join Date: Jul 2006
Location: Columbia, La
Posts: 82
fuel economy - diesel vs gas ??

Am thinking about trading for a motor home that has a Ford 7.3 diesel power stroke engine, 27 foot. can any one give me any idea what kind of mpg I will get. Just trying to figure out if diesel or gas would be better, since diesel costs more.
thanks
ladyrvr66 is offline   Reply With Quote
Join the #1 RV Forum Today - It's Totally Free!

iRV2.com RV Community - Are you about to start a new improvement on your RV or need some help with some maintenance? Do you need advice on what products to buy? Or maybe you can give others some advice? No matter where you fit in you'll find that iRV2 is a great community to join. Best of all it's totally FREE!

You are currently viewing our boards as a guest so you have limited access to our community. Please take the time to register and you will gain a lot of great new features including; the ability to participate in discussions, network with other RV owners, see fewer ads, upload photographs, create an RV blog, send private messages and so much, much more!

Old 09-14-2012, 01:28 PM   #2
Senior Member
 
kalynzoo's Avatar
 
Join Date: Mar 2007
Location: Northridge, Ca
Posts: 751
Just finished 1300 miles in the Western mountains. 38ft Winnebago Adventurer Workhorse 8.1 gas towing a Saturn Vue. Averaged about 6+mpg at a constant 55mph. Sometimes in the 7's on the flat and in the low 6's on the grades. Regular gas at $3.79 in Utah and $4.15 in Ca.
kalynzoo is offline   Reply With Quote
Old 09-14-2012, 01:31 PM   #3
Senior Member
 
wb7auk's Avatar
 
National RV Owners Club
Join Date: Feb 2012
Location: Spokane Valley, Wa
Posts: 1,987
Having had both the diesel gets 2 to 4 mpg better mileage.
Even though diesel cost more per gallon you will use less and
you will save on fuel cost.
I have a place that round trip is 1,000 miles that I have driven my old gas rig
and my diesel. The diesel saves me right at 200.00 in fuel cost and the diesel
is a lot heavier.
__________________
Art
1999 Trade Winds 7371 Cat 3126B w/current upgrades
1990 D 250 Dodge Ram Cummins Turbo
wb7auk is offline   Reply With Quote
Old 09-14-2012, 01:57 PM   #4
Senior Member
 
BFlinn181's Avatar
 
Gulf Streamers Club
Join Date: Jan 2012
Location: Cincinnati
Posts: 19,925
Regular Gas is, in our area right now, is 98% of the price of Diesel,($3.71 vs $3.87--Cincygasprices.com) but the difference in Gas and Diesel mileage is about 140% better (7 mpg vs 10 mpg) In order for gas to be cheaper, diesel would have to go up to $5.30 while gas stayed at $3.71.
__________________

Bob & Donna
'98 Gulf Stream Sun Voyager DP being pushed by a '00 Beetle TDI
BFlinn181 is offline   Reply With Quote
Old 09-15-2012, 09:05 PM   #5
Member
 
Join Date: Sep 2012
Posts: 76
Quote:
Originally Posted by ladyrvr66
Am thinking about trading for a motor home that has a Ford 7.3 diesel power stroke engine, 27 foot. can any one give me any idea what kind of mpg I will get. Just trying to figure out if diesel or gas would be better, since diesel costs more.
thanks
Some areas diesel is currently .20 to .30 cheaper than gas...............
__________________
2008 Sprinter chassis with
2010 Four Winds House class C
Pulling a 6x12 enclosed trailer
Showkey is offline   Reply With Quote
Old 09-15-2012, 09:09 PM   #6
Senior Member
 
Mr_D's Avatar
 
Country Coach Owners Club
Solo Rvers Club
iRV2 No Limits Club
Join Date: May 2011
Location: Vancouver, WA
Posts: 37,725
Quote:
Originally Posted by Showkey View Post
Some areas diesel is currently .20 to .30 cheaper than gas...............
Not ours!!
Unleaded reg $3.899
Diesel $4.309
at the same station.
__________________
2009 45' Magna 630 w/Cummins ISX 650 HP/1950 Lbs Ft, HWH Active Air
Charter Good Sam Lifetime Member, FMCA,
RV'ing since 1957, NRA Benefactor Life, towing '21 Jeep JLU Rubicon Ecodiesel
Mr_D is offline   Reply With Quote
Old 09-15-2012, 11:05 PM   #7
Senior Member
 
vsheetz's Avatar


 
Fleetwood Owners Club
Ford Super Duty Owner
Join Date: Jun 2012
Location: SoCal
Posts: 15,749
Consider not only fuel costs - but service costs, additional capital costs, etc. of the diesel - and your usage (do you stay more, drive less, etc.).
__________________
Vince and Susan
2011 Tiffin Phaeton 40QTH (Cummins ISC/Freightliner)
Flat towing a modified 2005 Jeep (Rubicon Wrangler)
Previously a 2002 Fleetwood Pace Arrow 37A and a 1995 Safari Trek 2830.
vsheetz is offline   Reply With Quote
Old 09-17-2012, 09:31 AM   #8
Senior Member
 
W4MBG's Avatar
 
Winnebago Owners Club
Ford Super Duty Owner
Join Date: Nov 2010
Location: Williamsburg, VA
Posts: 650
vsheetz nailed it! given the same size rig, diesel will get better fuel mileage. but that is offset by much higher maintenance costs. if you drive the rig a lot, diesel might be cheaper overall. if low usage, gas wins. engine related costs for my gas rig: 6 qts of oil and one filter. sure, it will need belts and hoses eventually, but so will a diesel. no huge fuel filters, dryers, 25 qts of oil, etc. it probably wont out-pull a diesel up a mountain, but i'm on vacation!
__________________
1999 Winnebago Minnie 29', Ford V10, Close to stock.
W4MBG is offline   Reply With Quote
Old 09-18-2012, 12:57 AM   #9
Senior Member
 
DogNPonyshow's Avatar
 
Thor Owners Club
Alpine Owners Club
Ford Super Duty Owner
Join Date: Jul 2012
Location: Bellingham, WAA
Posts: 233
I have an E350 van with the 7.3L I get 17 mpg going 68mph or under. I get 15mpg going 69 or faster. I get 12mpg towing a 3 horse trailer. My E350 that had a 460 gas got 12-15 max and 7 towing the same trailer loaded the same. Both vans 4x4 BTW.

I have the 7.3L F350 dually 4x4 I get 15 going 75 w no load. I get 10 w horse trailer and camper going 70 or if I keep it 68 or lower I get 12.

My V10 gas 29 MH gets 9mpg if I go 65. Over 65 and I drop to 7.5 .

I would love to have that 7.3 in my class C.

I travel a lot if interstae and mountain passes and the V10 handles it fine but that 7.3L you just don't have to work the engine as hard.
__________________
[SIGPIC][/SIGPIC]TheDogNPonyShow - Bellingham WA USA
1998 Alpine 36MDS DP Toad 2000 Geo Tracker.
DogNPonyshow is offline   Reply With Quote
Old 09-22-2012, 06:31 AM   #10
Junior Member
 
Join Date: Feb 2012
Posts: 3
I have the Duramax in my 35 Endura and after renting 30ft gassers I really enjoy the power of the diesel. We get 9 mpg regardless of where we go. As far as maintenance its not much more than gas. GM recommends changing the 2.5 gallons of oil at 15k. I do it at 10k. My gas trucks I do at 5k so it's not much more per mile for the diesel.
Driven2it is offline   Reply With Quote
Old 09-22-2012, 04:10 PM   #11
Senior Member
 
Spikester's Avatar
 
Newmar Owners Club
Join Date: Aug 2007
Location: Belfair WA.
Posts: 777
Quote:
Originally Posted by ladyrvr66 View Post
Just trying to figure out if diesel or gas would be better, since diesel costs more.
Having owned both, fuel cost per mile driven for our diesel is less than those for any of our gasers!

As stated above maintenance costs are more for the diesel depending on usage. Another thing to consider are other added benefits of a diesel, ride and handling to mention a few. Much more to consider than just fuel consumption/cost!

Spike
__________________
"Those who stand for nothing fall for anything"
2020 Dutch Star - 3736 - L9 450HP, Freightliner
2008 Newmar VTDP - 3330 - ISBXT 350 Spartan NVS
FMCA F113720, NKK 18573
Spikester is offline   Reply With Quote
Old 09-22-2012, 06:03 PM   #12
Registered User
 
Monaco Owners Club
Join Date: Oct 2006
Posts: 1,603
Quote:
mileage is about 140% better (7 mpg vs 10 mpg)
Is this math correct? Anyways I find diesel and gas to be a wash with the difference in cost in the USA. In Canada there is a definite savings with diesel as it is usually cheaper to purchase over gas. Had a gas coach for years and always felt it worked to hard going up and down the hills. I feel much more comfortable with the diesel and the maintenance difference is far to exaggerated. You only have to change the oil once per year and if you find the right garage you can get all the filters and oil changed quite reasonably. With use of the engine brake the brakes could last a life time. The engine will out last the gas engine 3 to 1. Hows that math?
georgetown350 is offline   Reply With Quote
Reply

Tags
diesel, fuel, gas



Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


» Featured Campgrounds

Reviews provided by


All times are GMT -6. The time now is 11:59 AM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2024, vBulletin Solutions, Inc.