Go Back   iRV2 Forums > iRV2.com COMMUNITY FORUMS > iRV2.com General Discussion
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 11-27-2015, 12:26 PM   #43
Senior Member
 
Join Date: Nov 2013
Location: Elko, Nv
Posts: 492
My Tiffin Red gets average of 8mpg, the Sightseer 8.1 gas that it replaced was 14ft shorter and on its best day got 8 and one trip was 4. The noise differance alone is worth having the DP. We have owned this MH since March and put over 8k mi on it and there are alot more to come, so it doesnt just sit parked. I never looked at it as an economics thing or we would have bought a Prius and a tent.
__________________

__________________
NevadaNick 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 11-28-2015, 11:45 AM   #44
Senior Member
 
CampDaven's Avatar


 
Join Date: Jul 2012
Location: Fulltime, USA
Posts: 14,464
Blog Entries: 1
Race - Gasser vs. Diesel

Quote:
Originally Posted by WeatherTodd View Post
Win what? I see alot of diesel guys talk the talk... but never seen one test the limits of their fuel economy.
I can guarantee you wont be seeing double digit fuel economy.
My gasser has gone 550 miles on a tank... towing a trailer at that.

Diesel pickup owners are even funnier. Never has "operational cost" been in such denial. Fuel pumps, oil pumps, injectors...etc.

Sure diesel rigs are nice... but the repair bills are not. And there is no denying they are expensive to operate & repair.

I am fulltime and my 6 YO 42ft is 42,000 loaded with toad. I get 7.5 over my annual 8000+ miles. I put 18,000 on the toad!
I'm happy, and feel like I win with a RR10S chassis and a smooth quiet ride that can go over 1M miles. Long-term ownership has great benefits, and beats down the overall cost through the term. Have had no $ surprises so far. I spent more maintaining my gassers.
I pass some of both as I climb hills, salute those that pass me, and politely wave when they are at the next light or pulling to a fuel station.
Happy Trails
__________________

__________________
Dave and Nola, RVM1
The Journey is Our Destination!

http://davenola.blogspot.com/
CampDaven is online now   Reply With Quote
Old 11-28-2015, 04:30 PM   #45
Member
 
Vintage RV Owners Club
Join Date: Jul 2012
Posts: 95
I read an magazine article a few years ago. I can't remember who wrote it to give him credit , but he did an apples to apples comparison of owning a DP over a comparable gas unit. He compared purchase price, insurance and maintenance costs along with average fuel costs for both types. The short story was that he calculated the cost difference for the average RV owner.
It would take the average RVr 107 years to recover the difference between the Diesel over Gasser. His comment was the wife may get tired of the upholstery by then.
It is definitely a matter of preference.
Mine is a gasser and it is what I prefer. I like the fact that if I need parts or service I have more options. But if you prefer the diesel all is good. You can pass me on the hills all you want. In 360 days I have no intention of travelling anywhere in a hurry.
Mine is a 34 foot Firan Raven.
__________________
Mr.Geritol is offline   Reply With Quote
Old 11-28-2015, 04:51 PM   #46
IC2
Senior Member
 
IC2's Avatar


 
Join Date: Jun 2010
Location: Upstate New York
Posts: 1,886
AHA - this thread finally degenerated into gas vs diesel.

DD - I really miss my F350 9-10 local mpg gasser

Towing - I really prefer the ease of hauling at 12-13 mpg with my F250 with F350 11200 pound suspension, diesel.

Cost of ownership - gasser is always less. Just the fuel filters on a 6.7 PSD are in the AMAZON 50 buck range vs 12 bucks for the same Motorcraft brand name, 18 buck oil filter vs a 5 buck gasser. Fuel for the diesel is currently $2.50/gallon, $2.15 for gas. 13 quarts of oil every 7.5K miles is ~$60 vs 7 quarts every 5K @ $21. If I need a single fuel injector for my diesel, it will cost the same as all ten for the gasser. But I really hated 'rowing' my gasser up our Northeaster hills with the shifter to make it over the top at a reasonable highway speed at 4500 RPM.

If I ever decide to stop pulling a fairly large 5er, yes, there will be a gas engined truck in my future but until then, it will be 400+Hp and 800+ lb ft of oil burner hauling power.
__________________
Dave W along with my DW, Susan and our poodlepups, Callie & Molly,2011 Ford F250 6.7 CCLB, 5er Hitch Option w/B&W Hitch,,Ride Rite air bags, 2014 Montana High Country 343RL (38')
IC2 is offline   Reply With Quote
Old 11-28-2015, 05:51 PM   #47
Senior Member
 
Outdoors RV Owners Club
Join Date: Dec 2014
Location: Nowhere, now here. Freedom!
Posts: 3,003
Quote:
Originally Posted by IC2 View Post
Fuel for the diesel is currently $2.50/gallon, $2.15 for gas.
Where I am in CA Diesel is anywhere from $.15 or better cheaper than regular unleaded gas.

Quote:
13 quarts of oil every 7.5K miles is ~$60 vs 7 quarts every 5K @ $21.
The oil change interval for my truck is 15k miles. Almost the same price as the gas comparison you posted, quoted just above.

Quote:
If I need a single fuel injector for my diesel, it will cost the same as all ten for the gasser.
Emphasis added.
__________________
ORV 19B Full Timer, '14 Ram 2500 Diesel and a GSD. This signature updated, May 1, '17.
Currently funemployed in Vancouver WA de K7NOL 146.52Mhz Safety? (CLICK ME!)
1bigmess is offline   Reply With Quote
Old 11-29-2015, 06:01 AM   #48
Junior Member
 
triker08's Avatar
 
Newmar Owners Club
Join Date: Sep 2015
Posts: 25
I was told by a long time RV salesman that it is all about TORQUE. if the two rv's have the same amount of torque, they will go up the hill the same speed. Seems to make sense. He talked me out of buying a used DP for that reason, and cost of repairs.
__________________
triker08 is offline   Reply With Quote
Old 11-29-2015, 10:10 AM   #49
Senior Member
 
Outdoors RV Owners Club
Join Date: Dec 2014
Location: Nowhere, now here. Freedom!
Posts: 3,003
One is directly related to the other. This article is for gas engines, but the principle doesn't care what fuel is being used.

What is Torque vs. Horsepower - Engine Power Delivery Explained - Hot Rod
__________________
ORV 19B Full Timer, '14 Ram 2500 Diesel and a GSD. This signature updated, May 1, '17.
Currently funemployed in Vancouver WA de K7NOL 146.52Mhz Safety? (CLICK ME!)
1bigmess is offline   Reply With Quote
Old 11-29-2015, 10:20 AM   #50
Senior Member
 
Join Date: Aug 2012
Posts: 1,330
Quote:
Originally Posted by triker08 View Post
I was told by a long time RV salesman that it is all about TORQUE. if the two rv's have the same amount of torque, they will go up the hill the same speed. Seems to make sense. He talked me out of buying a used DP for that reason, and cost of repairs.
I knew it would come down to this bad advice. Horsepower is the only measure of the amount of work that an engine can do.
__________________
lynnmor is offline   Reply With Quote
Old 11-29-2015, 11:12 PM   #51
Senior Member
 
Join Date: Oct 2015
Posts: 379
Quote:
Originally Posted by lynnmor View Post
I knew it would come down to this bad advice. Horsepower is the only measure of the amount of work that an engine can do.
If that's true then why can't my lighter and more powerful (hp) Bounder 38P with the workhorse chassis stay anywhere close to the soon to be X in laws Fleetwood discovery?
__________________
NC25T is offline   Reply With Quote
Old 11-30-2015, 06:59 AM   #52
Senior Member
 
JFNM's Avatar
 
Newmar Owners Club
Solo Rvers Club
Join Date: May 2013
Location: Mountain West
Posts: 1,060
It is good to see that this thread has degenerated into another "which is better" thread. I had hoped to keep it open for those guys that like to race against people that are not aware that they are in a race but...


Quote:
Originally Posted by Mr.Geritol View Post
I read an magazine article a few years ago. I can't remember who wrote it to give him credit , but he did an apples to apples comparison of owning a DP over a comparable gas unit.
This is simply not possible. There is no way to do an apples to apples comparison when the two types of equipment are so different. You need look no further than GCVW. Because they are different and because the DP can carry something around twice as much weight, one should not expect maintenance costs to be similar. I wrote all of this in the article I referenced earlier (here).

Quote:
Originally Posted by Mr.Geritol View Post
It is definitely a matter of preference.
I agree that it CAN be a matter of preference but more likely it is not. If you "need" to haul more "stuff", a DP is likely your only option because a gasser cannot safely haul the weight.
__________________
JD & Buddy (the ferocious feline) - Full timer out west
2005 Newmar Dutch Star 4023 | 2010 Wrangler (daJeep) | 650 Watts Solar
My Adventures
JFNM is offline   Reply With Quote
Old 11-30-2015, 06:59 AM   #53
Senior Member
 
JFNM's Avatar
 
Newmar Owners Club
Solo Rvers Club
Join Date: May 2013
Location: Mountain West
Posts: 1,060
Quote:
Originally Posted by lynnmor View Post
I knew it would come down to this bad advice. Horsepower is the only measure of the amount of work that an engine can do.
As stated previously, dollars move motorhomes - nothing else.
__________________
JD & Buddy (the ferocious feline) - Full timer out west
2005 Newmar Dutch Star 4023 | 2010 Wrangler (daJeep) | 650 Watts Solar
My Adventures
JFNM is offline   Reply With Quote
Old 11-30-2015, 07:05 AM   #54
Senior Member
 
JFNM's Avatar
 
Newmar Owners Club
Solo Rvers Club
Join Date: May 2013
Location: Mountain West
Posts: 1,060
Quote:
Originally Posted by triker08 View Post
I was told by a long time RV salesman that it is all about TORQUE. if the two rv's have the same amount of torque, they will go up the hill the same speed. Seems to make sense. He talked me out of buying a used DP for that reason, and cost of repairs.
Not to pick on your triker08 but I see this fairly regularly and I don't really understand it. A DP is built to carry a much heavier load, why are people that do not require this looking to buy them? Is it a case of our society demanding that we always get far more than we need or is it just a cool factor? Perhaps it is the much better and quieter ride? I'm really not sure. I can imagine though, that it is these people that complain the most about the cost of maintenance. They "over bought" and are now not happy?? Just thinking out loud....
__________________
JD & Buddy (the ferocious feline) - Full timer out west
2005 Newmar Dutch Star 4023 | 2010 Wrangler (daJeep) | 650 Watts Solar
My Adventures
JFNM is offline   Reply With Quote
Old 11-30-2015, 02:06 PM   #55
Senior Member
 
Join Date: Aug 2015
Posts: 1,149
1bigmess, thanks for posting the link to the torque-horsepower article. IMHO, a very good one.


I think in much of this thread there is not enough consideration given to weight which is a big factor in the torque/horsepower discussion. Personally, with RVs I have always given more consideration to torque, at what rpm peak torque is developed, and the shape of the torque curve. Then the drive train needs to be configured to take maximum advantage of engine output.


Back in the early 80s I put together a truck to haul our 11.5' camper using a '69 F-250 4WD, Perkins 6-354 diesel engine, International 5 speed trans with 18% OD in 5th, Watson 2 speed with direct and 20% OD going into 4.10 diffs. I planned for a cruising speed of around 65mph running at or just past peak engine torque at 1650 or 1700 rpm (as well as I remember). I spent a lot of time studying what was needed and was very happy with the results. We used the old truck for annual trips across the US until '93 when we bought a Dodge Cummins and I gave the Ford to my oldest son. It was not any one of the parts that made the truck successful, but the combination of all of them. IMHO, the same is true for any vehicle.


Steve
__________________
dix39 is offline   Reply With Quote
Old 11-30-2015, 05:32 PM   #56
Senior Member
 
Cat320's Avatar
 
Fleetwood Owners Club
American Coach Owners Club
Join Date: Mar 2011
Posts: 4,761
I've had both, and speed is really irrelevant, we are all travelling about the same speed. However, while the diesel is loafing along, the gasser will be sucking wind...it's the nature of the beast. After several hundred thousand miles, the diesel will still be loafing along the gasser will be dead...it's the nature of the beast, an apples to oranges comparison.
__________________

__________________
2014 American Eagle 45T
DD 500
Pulling a Honda CRV
Cat320 is offline   Reply With Quote
Reply

Tags
ace, 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
To diesel or not to diesel? FixerCQI Canada Region 29 11-23-2014 12:59 PM
B20 Bio Diesel traveler of california iRV2.com General Discussion 31 06-02-2014 12:19 PM
Gas and Diesel annual maintenance $ Differences? 2wiresdave Class A Motorhome Discussions 17 05-16-2014 06:20 PM
Hydronic heat: Propane vs Diesel in winter temps? TinMan Trvlr RV Systems & Appliances 10 03-31-2014 03:32 PM
Gas or diesel? Ojpearce05 Class A Motorhome Discussions 7 01-05-2014 01:28 PM

» Virginia Campgrounds

Reviews provided by


Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -6. The time now is 09:24 PM.


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