RV.Net Open Roads Forum: Diesel Pusher upgrading to heavier toad-advice needed

RV Blog

  |  

RV Sales

  |  

Campgrounds

  |  

RV Parks

  |  

RV Club

  |  

RV Buyers Guide

  |  

Roadside Assistance

  |  

Extended Service Plan

  |  

RV Travel Assistance

  |  

RV Credit Card

  |  

RV Loans

Open Roads Forum Already a member? Login here.   If not, Register Today!  |  Help

Newest  |  Active  |  Popular  |  RVing FAQ Forum Rules  |  Forum Posting Help and Support  |  Contact  

Search:   Advanced Search

Search only in Class A Motorhomes

Open Roads Forum  >  Class A Motorhomes  >  General Topics

 > Diesel Pusher upgrading to heavier toad-advice needed

Reply to Topic  |  Subscribe  |  Print Topic  |  Post New Topic  | 
Page of 2  
Next
Sponsored By:
JBouknight

South Carolina

New Member

Joined: 11/05/2019

View Profile



Posted: 11/05/19 08:03am Link  |  Quote  |  Print  |  Notify Moderator

Hello. I am a long time lurker and have always gotten the information I need from searches. Having trouble with making a decision and would like some advice from some persons who have done this or the reverse.
We have our third Class A which is a 41' 2006 American Tradition with a 400HP CAT rated at 15,000 tow. I have been towing a 2013 F150 Crew Platinum. Now I have a 2018 RAM 2500 Crew. The new truck should be about 2000 pounds heavier. How much difference is making the 2500 our TOAD going to make in power and fuel?
Thank you

* This post was edited 11/05/19 10:02am by JBouknight *

pigman1

Delaware

Senior Member

Joined: 06/28/2004

View Profile


Offline
Posted: 11/05/19 08:45am Link  |  Quote  |  Print  |  Notify Moderator

If you see it at all, it'll probably be very slight. We always pull the Silverado and most of the time it's empty or close to empty, but when we head to Alaska (9 times so far) the truck goes about 8100 lb. Most times I'll see a tenth or 2 on my bus mileage, but sometimes nothing.


Pigman & Piglady
2013 Tiffin Allegro Bus 43' QGP
2011 Chevy Silverado 1500
SMI Air Force One toad brake
Street Atlas USA Plus

WAFlowers

Clearwater, FL

Full Member

Joined: 05/11/2009

View Profile



Good Sam RV Club Member

Offline
Posted: 11/05/19 11:22am Link  |  Quote  |  Print  |  Notify Moderator

If you think about it there is almost no wind resistance with the toad riding in the slipstream of your RV. I say almost because the air does swirl coming off the roof. And there is almost no rolling resistance (bearing and other driveline friction) but, of course, there is a little.

Where you will see increased consumption, if you had really good (laboratory) instrumentation is during acceleration. But that only lasts a short while compared to just rolling down the highway.

Based on my experience you will see more fuel impact from a windy day than from a heavier towed vehicle. So relax and enjoy! [emoticon]


Bill and Willemina Flowers
George, Sammy and Teddy (the dogpack)
2008 Tiffin Phaeton 40QSH
2005 Keystone Monata 3400rl (5/21/11 to 9/9/17)
(Was in a 2000 Coachmen Catalina Sport 220RK)


ferndaleflyer

everywhere

Senior Member

Joined: 03/31/2011

View Profile


Offline
Posted: 11/05/19 02:31pm Link  |  Quote  |  Print  |  Notify Moderator

you will see the difference on the hills. No matter if its in the slip stream, and has little friction you still have to "lift" it to go up hill. Still shouldn't make much over all difference.

CA Traveler

The Western States

Senior Member

Joined: 01/03/2004

View Profile


Offline
Posted: 11/05/19 07:57pm Link  |  Quote  |  Print  |  Notify Moderator

Upgrading from our 3,200 lb CRV to the 5,450 Jeep we could detect the additional drag during acceleration. And grades a little more so.

Our fuel consumption went from 8.0 to 7.8. Very difficult to determine if this change was from the increased weight and/or other variables. 60-62 MPH 400 ISL


2009 Holiday Rambler 42' Scepter with ISL 400 Cummins
750 Watts Solar Morningstar MPPT 60 Controller
2014 Grand Cherokee Overland

Bob


JBouknight

South Carolina

New Member

Joined: 11/05/2019

View Profile



Posted: 11/06/19 06:06am Link  |  Quote  |  Print  |  Notify Moderator

Great information! Thank everyone for your replies.

wolfe10

Texas

Senior Member

Joined: 10/08/2000

View Profile


Online
Posted: 11/06/19 07:02am Link  |  Quote  |  Print  |  Notify Moderator

Bottom line (based on physics):

Extra weight has little effect on flat ground once up to speed.

Extra weight makes a difference when accelerating.

Extra weight makes a more significant difference when climbing grades.

Go to this link and download the PDF. Written by Caterpillar Corp, but same physics applies to all vehicles.

http://forum.dieselrvclub.org/index.php/topic,6594.0.html


Brett Wolfe
Ex: 2003 Alpine 38'FDDS
Ex: 1997 Safari 35'
Ex: 1993 Foretravel U240


FMCA Forum: www.community.fmca.com/index

Diesel RV Club:http://www.dieselrvclub.org/

Ed C

Cape Cod, MA

Senior Member

Joined: 04/24/2001

View Profile



Good Sam RV Club Member

Offline
Posted: 11/06/19 08:25am Link  |  Quote  |  Print  |  Notify Moderator

We tow a 4800 lb Jeep, a 5500 lb Sierra or the Sierra with a golf cart and lots of other stuff at around 7000 lb; there is no big difference.


Ed/Jeanie & Slade the GSD
2017 Entegra Aspire 42 RBQ/ Sierra Crew

Executive

California/Arizona/South Dakota

Senior Member

Joined: 02/07/2008

View Profile





Offline
Posted: 11/06/19 10:38am Link  |  Quote  |  Print  |  Notify Moderator

wolfe10 wrote:

Bottom line (based on physics):/snip/



http://forum.dieselrvclub.org/index.php/topic,6594.0.html


Interesting read, Brett, thanks.....Dennis


A Simple Act of Caring Creates an Endless Ripple
Dennis and Debi Ten Years Full Timing
Monaco Executive M-45PBQ Quad Slide
525HP Cummins ISM 6 Spd Allison
2014 Chevrolet Equinox LTZ W/ ReadyBrute
CLICK HERE TO VIEW OUR TRAVEL BLOG



Alan_Hepburn

San Jose, Ca, USA

Senior Member

Joined: 05/02/2003

View Profile





Offline
Posted: 11/06/19 12:10pm Link  |  Quote  |  Print  |  Notify Moderator

We burn gas, not diesel, but we recently switched from towing an 1800 lb smart car to a 4400 lb Jeep Wrangler. Out average fuel mileage went from just under 7 mpg to just over 6 mpg...


----------------------------------------------
Alan & Sandy Hepburn driving a 2007 Fleetwood Bounder 35E on a Workhorse chassis - Proud to be a Blue Star Family!
Good Sam Member #566004


Reply to Topic  |  Subscribe  |  Print Topic  |  Post New Topic  | 
Page of 2  
Next

Open Roads Forum  >  Class A Motorhomes  >  General Topics

 > Diesel Pusher upgrading to heavier toad-advice needed
Search:   Advanced Search

Search only in Class A Motorhomes


New posts No new posts
Closed, new posts Closed, no new posts
Moved, new posts Moved, no new posts

Adjust text size:

© 2019 CWI, Inc. © 2019 Good Sam Enterprises, LLC. All Rights Reserved. | Terms of Use | PRIVACY POLICY | YOUR PRIVACY RIGHTS