Go Back   iRV2 Forums > MOTORHOME FORUMS > Class A Motorhome Discussions
Click Here to Login
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 03-19-2012, 08:00 PM   #1
Junior Member
 
Join Date: Mar 2012
Posts: 6
Blog Entries: 1
Gas versus Diesel Pusher on Steep Inclines

Contemplating the purchase of a new RV, We will be travelling extensively out West - Glacier, Zion, Wyoming and Colorado. I've heard from some persons that gasoline RVs have problems sometimes going up steep inclines. One person said they had to unhitch their towed auto to make it up the hill. I was told that diesel pushers have much less, if any, problems with this. RV will be 35-40 feet long. Comments from experienced Rvers are appreciated. Thanks!
__________________

__________________
GoingPlaces 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 03-19-2012, 08:18 PM   #2
Senior Member
 
Join Date: Sep 2010
Location: Tucson, AZ
Posts: 736
My MH is 38' with a tag axle, towing a vehicle on a dolly.
It is a gas 1999 Ford V-10, first year so only 275HP.
We travel only western US and have never dropped below 2nd gear and 25mph on any hill we have found.
My rig will do that all day long, slow but sure.
Can't imagine what kind of rig has to unhook the toad to make it up a hill,
unless they are on some real backroads.
The diesel will pull hills better, they have more power, but cost more money.

.
__________________

__________________
Sequim Guy is offline   Reply With Quote
Old 03-19-2012, 08:19 PM   #3
Senior Member
 
hawgguy's Avatar
 
Join Date: Jun 2011
Location: West Texas
Posts: 2,676
Depends on how fast you want to go up the hill. I'll bet a gasser will make it up most as long as the transmission is in the proper gear & the RPM's are in the sweet spot. The diesel, will probably do it a little easier/faster depending on the size of the engine but it will cost more up front as well as maintenance.
__________________
hawgguy is offline   Reply With Quote
Old 03-19-2012, 08:19 PM   #4
Senior Member
 
JacknKay's Avatar
 
Tiffin Owners Club
Join Date: Apr 2011
Posts: 594
If it's 35ft a gas rig might be okay, but if it's a 40ft, you are talking about at DP. IMHO.
__________________
Jack & Kay
2015 Allegro 32CA Ford Chassis
FMCA #341229
JacknKay is offline   Reply With Quote
Old 03-19-2012, 08:32 PM   #5
Senior Member
 
docj's Avatar
Official iRV2 Sponsor
 
Join Date: May 2011
Posts: 3,712
It's not just the steepness; it's the altitude. A naturally-aspirated gas engine loses ~4% per 1,000 ft of altitude. So at ~5,000 ft (Denver) the power is down around 20%. A turbo-diesel loses about 1% per 1,000 ft. So at 5,000 ft you're down about 5%.

We spent most of the summer at altitudes >5,000 ft; our diesel never noticed.
__________________
Joel Weiss--WiFiRanger RV Ambassador
RVParkReviews administrator
2000 40' Beaver Patriot Thunder Princeton CAT C-12
docj is offline   Reply With Quote
Old 03-19-2012, 08:39 PM   #6
KIX
Senior Member
 
KIX's Avatar


 
Join Date: Dec 2006
Location: St. Augustine, FL
Posts: 3,579
Another factor of diesel vs. gas is the weight of the rig. The heavier the vehicle the better the ride (generally speaking). Diesels have a heavier frame and the rig will be heavier than a comparably sized gas rig. So........for travels in areas defined in the OP my suggestion is for a diesel rig.
__________________
KIX
'02 Ultimate Advantage 40J Spartan MM - Cummins ISC
2013 Jeep Rubicon JK Unlimited
KIX is offline   Reply With Quote
Old 03-19-2012, 08:44 PM   #7
Senior Member
 
new2RVn's Avatar
 
Winnebago Owners Club
Ford Super Duty Owner
Join Date: Aug 2011
Location: Richmond Hill, Ga.
Posts: 242
Our V10 gasser has done great in the mtns. of N. Ga, N.C and Tenn. pulling a jeep toad. I've passed a few DP's that seemed to be struggling and been passed by a few that went by me like I was sitting still. The only thing I would say is if it breaks I would rather repair my gasser than a DP. But that is my opinion, and we all know what they say about opinions.
__________________
Steve & Cheryl w/3rd Crewmember Peanut, Our Deerhead Chiuaua
2000 Winnebago Adventurer 35U F53, V10 Gasser,Safe T Plus
2004 Wrangler Toad via Stowmaster 5000, BrakeBuddy Classic
Marriage is a relationship in which one is always right and the other is the husband
new2RVn is offline   Reply With Quote
Old 03-19-2012, 08:56 PM   #8
laj
Senior Member
 
Join Date: Nov 2010
Posts: 1,241
Not to impose something different but what goes up must come down With a diesel you also have the jake to come down on
I have seen some gassers with fairly warm brakes
Jmho
__________________
laj is offline   Reply With Quote
Old 03-19-2012, 09:16 PM   #9
Senior Member
 
SteveLevin's Avatar
 
Join Date: Feb 2010
Location: Sunnyvale, CA
Posts: 1,195
Both gas and diesel will do the job; depending upon the engine/transmission combinations, each will do it at various different speeds.

About the one thing you can be sure of, though, is that in a gas setup you will likely be turning a few rpm going up and coming down hills. And more importantly, that engine is sitting right up front with you. And no matter what you do...it'll be loud.

The diesel may be louder, even, perhaps, except that if it's 35' behind you, you don't notice.

Steve
__________________
SteveLevin is offline   Reply With Quote
Old 03-19-2012, 09:17 PM   #10
Senior Member
 
Vegasdan's Avatar
 
National RV Owners Club
Freightliner Owners Club
Join Date: Oct 2009
Posts: 1,873
The one more determining factor in hills would be the length of the incline. The longer the uphill grade will tend to make it more difficult to maintain enough speed. A diesel tends to climb longer grades without losing as much speed. Another thing to do is build your speed up before starting the grade if possible, then keeping the engine in the proper RPM range by using the transmission.
__________________
2001 National Tradewinds 7370 300 Cat
2011 Jeep Wrangler Unlimited Sport
Officially fulltiming. The Journey Begins
Vegasdan is offline   Reply With Quote
Old 03-19-2012, 10:16 PM   #11
Senior Member
 
UFO Pilot's Avatar
 
Winnebago Owners Club
Workhorse Chassis Owner
Join Date: Aug 2007
Location: Sonoma County, CA
Posts: 4,607
Quote:
Originally Posted by SteveLevin View Post
Both gas and diesel will do the job; depending upon the engine/transmission combinations, each will do it at various different speeds.

About the one thing you can be sure of, though, is that in a gas setup you will likely be turning a few rpm going up and coming down hills. And more importantly, that engine is sitting right up front with you. And no matter what you do...it'll be loud.

The diesel may be louder, even, perhaps, except that if it's 35' behind you, you don't notice.

Steve
Not all gas rigs are noisy, mine sure is quiet.
__________________
Wayne & Roberta and Maggie the Miracle Dog
08 Winnebago Destination 39W Gas UFO Workhorse Chassis
Making the Journey in our Destination

UFO Pilot is offline   Reply With Quote
Old 03-19-2012, 10:19 PM   #12
Senior Member
 
jimmyjnr's Avatar
 
Join Date: Apr 2010
Location: Boulder CO
Posts: 738
We have a sightseer with chevy 8.1 , we live in CO and travel the i70 west over the mountains , never exceed 2500 rpm equates 45-50 mph. easy up and down .
Yes , a 500hp pusher would be quieter and faster but a gasser is what we can afford .
Don't stretch yourself financially Just enjoy the adventure
Safe travels everyone
__________________
jimmyjnr is offline   Reply With Quote
Old 03-19-2012, 11:53 PM   #13
Registered User
 
Vintage RV Owners Club
Gulf Streamers Club
Join Date: Oct 2010
Location: Indiana
Posts: 4,954
Quote:
Originally Posted by GoingPlaces View Post
Contemplating the purchase of a new RV, We will be travelling extensively out West - Glacier, Zion, Wyoming and Colorado. I've heard from some persons that gasoline RVs have problems sometimes going up steep inclines. One person said they had to unhitch their towed auto to make it up the hill. I was told that diesel pushers have much less, if any, problems with this. RV will be 35-40 feet long. Comments from experienced Rvers are appreciated. Thanks!
For an RV that size AND travel in the West, I'd go Diesel... if you can afford
__________________
Midniteoyl is offline   Reply With Quote
Old 03-20-2012, 08:03 AM   #14
Senior Member
 
Join Date: Dec 2005
Location: Chicago area
Posts: 288
We had a gas rig for 10 years and managed to handle mountains in the east without too much trouble. Our's was on the W-22 chassis (8.1L). It was loud at times and would occasionally red line in steeper sections. My biggest fear was going downhill! It was vital to go into lower gears to keep the brakes from getting too hot.

We finally bit the financial bullet and went for a DP in late 2012. Between the extra power and the jake brake the mountains are a non-issue now. Having said this, we were fine for 10 years in our gas coach. Perhaps the fact that I'm not as young as I used to be and prefer the cushier ride of the DP played into our decision... Bottom line - with a good gas coach you'll be fine. If you can afford it the DP is a smoother, more refined ride. Took us 10 years to afford one.
__________________

__________________
2012 Entegra Aspire 40DRQ on Spartan chassis
2006 Toyota Highlander toad
2 daughters, 2 dogs, and 1 wife
rvguy02 is offline   Reply With Quote
Reply

Tags
diesel, gas



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

Advanced Search
Display Modes

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


Similar Threads
Thread Thread Starter Forum Replies Last Post
So what's your gas mileage? kennyb79 Class C Motorhome Discussions 151 01-02-2017 09:01 AM
What rating on truck tires? Akibase Travel Trailer Discussion 7 03-22-2012 01:16 PM
can I use my iPad as the source for what I want playing on my Sony tv? 2012newmar Technology: Internet, TV, Satellite, Cell Phones, etc. 10 03-21-2012 10:12 AM
Allison Trans. started leaking on the way to Bike Week in Daytona Phil Palmer Monaco Owner's Forum 1 03-20-2012 09:03 PM
Allison Trans. started leaking on the way to Bike Week in Daytona Phil Palmer Monaco Owner's Forum 4 03-19-2012 07:47 PM

» Virginia Campgrounds

Reviews provided by


Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -6. The time now is 04:12 AM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.