RV.Net Open Roads Forum: Tow Vehicles: Big 3 diesel test/evaluation

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 Tow Vehicles

Open Roads Forum  >  Tow Vehicles

 > Big 3 diesel test/evaluation

This Topic Is Closed  |  Print Topic  |  Post New Topic  | 
Page of 6  
Next
Sponsored By:
ib516

Way up north eh

Senior Member

Joined: 04/18/2003

View Profile



Posted: 06/06/11 05:30pm Link  |  Print  |  Notify Moderator

In this months Diesel Power magazine, they pit the 3 diesels against each other in yet another test. All "towing" refers to a smaller 5000# TT RV.

The Ram tested was still the 650 tq version of the 6.7L Cummins, not the newly introduced 800tq version[emoticon]

Interesting results. Each had their pro and con; here are some highlights:

- Exhaust brake -- Dodge, then GM, then Ford. They called the Ford's exhaust brake "marginally effective", and the Rams "excellent", the GMs was somewhere in the middle.

- MPG***
  • Duramax 17.3 mpg empty, 10.39 mpg towing 5000#
  • Ford 17.0 mpg empty, 10.52 mpg towing 5000#
  • Ram 15.4 mpg empty, 9.96 mpg towing 5000#

- Dyno power
  • Duramax 354hp/633tq
  • Ford 333hp/656tq
  • Ram 310hp/562tq

- 1/4 mile Acceleration
  • Duramax empty 15.75 sec
  • Ford empty 15.99 sec
  • Ram empty 16.34 sec
  • Duramax towing 19.83 sec
  • Ford towing 19.64 sec
  • Ram towing 20.53 sec

- 0-60
  • Duramax 7.71 sec
  • Ford 8.22 sec
  • Ram 8.77 sec


*** Note that the "towing mpg" included several full throttle runs uphill and testing while towing hence the low mpg for all three for only towing a 5000# RV.


Prev: 2010 Cougar 322QBS (junk)
02 Dodge 2500 4x4 5.9L CTD 3.55
07 Dodge 3500 4x4 SRW Mega 5.9L CTD 3.73
14 Ram 2500 4x4 Crew 6.4L Hemi 4.10
06 Chevy 1500 4x4 E-Cab 3.73 5.3L
All above are sold
Current: 07 Dodge 1500 5.7L Hemi 3.55 / 2010 Jayco 17z


ib516

Way up north eh

Senior Member

Joined: 04/18/2003

View Profile



Posted: 06/06/11 05:40pm Link  |  Print  |  Notify Moderator

I hope we can keep this discussion cordial. I have posted ONLY facts as they appeared in the magazine. There is none of my opinion included in my OP.

kaydeejay

SE Michigan, USA

Senior Member

Joined: 07/26/2004

View Profile


Offline
Posted: 06/06/11 05:57pm Link  |  Print  |  Notify Moderator

ib516 wrote:


- Dyno power
  • Duramax 354hp/633tq
  • Ford 333hp/656tq
  • Ram 310hp/562tq

These numbers tell me one of two things:-
1) The Ford 3 HP advantage is imaginary. This is a 21HP advantage to the GM truck.
or
2) The GM drivetrain loses a lot less power in getting to the wheels.

Either way, in a slightly lighter truck, it does explain the performance edge in some areas.
(I can't wait for Ricatic to tell us why this test was a "farce" too[emoticon])


Keith J.
Sold the fiver and looking for a DP, but not in any hurry right now.

Lagarto_Roca

Austin, TX

Senior Member

Joined: 03/22/2010

View Profile


Offline
Posted: 06/06/11 05:57pm Link  |  Print  |  Notify Moderator

I wonder why they only used a 5k RV? Is that even enough to warrant an exhaust brake use? Or even enough weight to test it properly?

A 19-20-sec 1/4 mile time with only 5k lbs hooked up? Seems flawed to me. [emoticon]
Side Note: I think it'd be hilarious to see the trucks lined up on the track....with RVs in tow. [emoticon]


2007 LBZ 3500 LT3 DRW Crew Cab, Sulastics, Putnam XDR 15K, B&W 30K-Turnover GN+Companion, Ride-Rite Air
1999 Layton 3125 33' 5er

larry barnhart

wenatchee. wa usa

Senior Member

Joined: 03/30/2001

View Profile





Offline
Posted: 06/06/11 06:33pm Link  |  Print  |  Notify Moderator

So where is the winner? Nothing I read means much because somebody will have a wife that needs 2 rest stops compared one that just needs one rest stop so where is the winner. We are so drive a great truck and have some fun rving.
chevman


chevman
2001 35 ft avalon alpenlite RK
2005 3500 2wd duramax CC dually
prodigy
easyrider/reese airhitch
trailair center point suspension
JT Strong Arm Stabilizers
KSH 55 inbed fuel tank

scanguage II
TD-EOC
Induction Overhaul Kit
TST tire monitors
FMCA # F479110


UsualSuspect

Saugus, CA

Senior Member

Joined: 05/23/2007

View Profile





Offline
Posted: 06/06/11 06:40pm Link  |  Print  |  Notify Moderator

From looking at this, since I am not in a speed contest at the stoplight or going anywhere, fuel economy gets down to your foot, what you tow, and what the terrain is like. All 3 are good trucks, buy which one you like the best (I know I am going to hades for saying it D/A Owner's, but it is true).


2007 Fleetwood Excursion 40E Cat C7 350 HP
2007 Chev 2500HD D/A Long bed CC (Yes, it is my TOAD ">)
2011 Toyota Tundra
2013 Jeep Wrangler Unlimited Sahara (Backup towed)
Gone but not forgotten, 2008 Jayco 299 RLS

skipnchar

Topeka or somewhere else

Senior Member

Joined: 12/17/2003

View Profile



Posted: 06/06/11 08:34pm Link  |  Print  |  Notify Moderator

Seems to me that it has unquestionally proven that all of those trucks make a pretty good towing machine but a really poor dragstir [emoticon] How many times has anyone punched a clock while towing their RV?


2011 F-150 HD Ecoboost 3.5 V6. 2550 payload, 17,100 GCVWR -
2004 F-150 HD (Traded after 80,000 towing miles)
2007 Rockwood 8314SS 34' travel trailer

US Govt survey shows three out of four people make up 75% of the total population


fla-gypsy

North Florida

Senior Member

Joined: 04/19/2005

View Profile



Good Sam RV Club Member

Offline
Posted: 06/06/11 08:49pm Link  |  Print  |  Notify Moderator

I see Ford put down more torque to the rear wheels with less HP and won the 1/4 mile towing test and was 1/4 to 1/2 second slower empty with less than 1 second difference in all of them. That adds up to not a dimes worth of difference between all of them


This member is not responsible for opinions that are inaccurate due to faulty information provided by the original poster. Use them at your own discretion.

09 SuperDuty Crew Cab 6.8L/4.10(The Black Pearl)
06 Keystone Hornet 29 RLS/(The Cracker Cabana)

RollingRockTX

Aurora

Senior Member

Joined: 08/04/2006

View Profile



Posted: 06/06/11 09:16pm Link  |  Print  |  Notify Moderator

Read the article yesterday....best quote is near the end on page 69


"there's not a bad truck in this group and if we had to buy one tomorrow-we'd likely take the truck that we could get for the lowest price"

Pretty good summary if you ask me. Any new buyer is pretty lucky to have such a great pick of great trucks.

RR


2017 F150 Lariat 3.5EB
2016 Acura MDX SWD
2013 Yamaha Golf Cart
10 year old Quarter Horse, "Shadow"
2019 Jayco White Hawk 28BH

MadMav

Colorado Springs, CO

Senior Member

Joined: 03/12/2007

View Profile


Offline
Posted: 06/06/11 09:27pm Link  |  Print  |  Notify Moderator

Great showing from the underdog Dodge. Cheaper too. [emoticon]

Mav


"A fifth wheel trailer is a bi-level towable mobile home."

This Topic Is Closed  |  Print Topic  |  Post New Topic  | 
Page of 6  
Next

Open Roads Forum  >  Tow Vehicles

 > Big 3 diesel test/evaluation
Search:   Advanced Search

Search only in Tow Vehicles


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