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09-10-2018, 06:22 PM
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#1
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Site Team
2009 25' FB International
2018 27' Globetrotter
Tavares
, Florida
Join Date: Mar 2014
Posts: 3,654
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Tow/Haul Mode
Do you use Tow/Haul mode on your diesel TV's? I have a new Cummins and am trying to understand when to use it. Or should it be used anytime the truck is towing?
Thanks!
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09-10-2018, 07:05 PM
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#2
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Rivet Master
2018 28' International
Fayetteville
, Georgia
Join Date: Jan 2018
Posts: 825
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I use tow/haul when towing. That is what it is for...
brick
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brick
2018 International Serenity
Cute wife...
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09-10-2018, 07:07 PM
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#3
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Rivet Master
1986 31' Sovereign
Miami
, Florida
Join Date: Feb 2004
Posts: 3,137
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Towing my 1600# boat - no. Towing my four ton Airstream, always.
__________________
Sorta new (usually dirty) Nissan Titan XD (hardly paid for)
Middle-aged Safari SE
Young, lovely bride
Dismissive cat
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09-10-2018, 07:45 PM
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#4
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Reads a lot
2017 30' Classic
Titusville
, Florida
Join Date: Dec 2016
Posts: 1,209
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Always use the toe/haul mode when towing. I’m not sure about yours but on mine I have to manually engage the tow/haul mode each and every time I start the engine. I’m not sure if there is a way to use or store pre-set options so a couple of times I forgot to engage after stopping for gas. Nothing awful happened but now I have a posted note on the dash to remind me.
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Lauri
She Believed She Could so She Did.
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09-10-2018, 07:47 PM
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#5
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Rivet Master
2011 25' FB Flying Cloud
Peculiar
, Missouri
Join Date: Aug 2010
Posts: 531
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When I'm towing I do. I was told by more than one service guy, that a transmission repair was a lot more than any fuel savings I may see.
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09-10-2018, 07:50 PM
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#6
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2 Rivet Member
2019 25' Flying Cloud
Arlington Heights
, Alabama
Join Date: Jun 2016
Posts: 42
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Tow haul mode, aside from better shifting for the trailer, coordinates the upshift/downshift on upgrades and downgrades - and when used with diesels and engine brakes coordinates that as well.
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09-10-2018, 08:34 PM
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#7
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retired USA/USAF
2001 30' Excella
Somerset
, New Jersey
Join Date: Jan 2009
Posts: 2,418
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I thought I read recently about one of the newer/smarter trucks that automatically engaged the tow/haul mode when the trailer is hooked up and the truck electronics recognizes it. But for now mine is a manual engagement. I activate it when I think about it which is maybe 50% of the time. I don't notice any mileage difference but I do think it makes the engine brake and transmission function better to hold speed on long downhill grades.
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Roger in NJ
" Democracy is the worst form of government. Except for all the rest"
Winston Churchill 1948
TAC - NJ 18
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09-10-2018, 08:34 PM
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#8
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Rivet Master
1999 34' Excella
Currently Looking...
Hillsboro
, Texas
Join Date: Feb 2013
Posts: 6,406
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Tow/haul : ON... Check
Exhaust Brake : ON... Check
Average 12.4 MPG calculated using Big Chief Tablet and sharpened Graphite writing instrument. Truck gauge says 12.3 MPG over 8300 miles. with 5 ton of Airstream..
14% Grade .. downhill.. at Frenchglen, OR... still here to type.. no scrapes or scratches, except for my wife's fingernails in the dashboard... even tho the TV is a 2017 Duramax/Allison 4x4 combo..
__________________
Peace and Blessings..
Channing
WBCCI# 30676
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09-11-2018, 06:17 PM
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#9
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Rivet Master
1988 25' Excella
1987 32' Excella
Knoxville
, Tennessee
Join Date: Oct 2010
Posts: 5,095
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Yes. I use tow/haul anytime I am towing the trailer. When I am in mountains and it shifts in and out of overdrive a lot and I am going under 55 I use the over drive off mode also. I think the tow/haul helps the transmission because of the alterations to the shift pattern and shift mechanism.
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09-11-2018, 08:09 PM
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#10
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Rivet Master
2006 23' Safari SE
Holly Lake Ranch
, Texas
Join Date: Sep 2010
Posts: 1,794
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I always use it when towing the AS. On our recent trip west I did use sport shift option on the Tundra when going down severe grades. Just made sure I hit my hazard flashers as I kept my speed down going down hill.
Dana
__________________
Dana and Olga
2006 Safari 23
2011 Tundra Double Cab
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09-11-2018, 08:27 PM
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#11
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4 Rivet Member
2010 27' FB International
Deforest
, Wisconsin
Join Date: Jul 2016
Posts: 306
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I always use tow/haul mode. It seemed that the transmission temps were somewhat higher if I did not use tow/haul and pulled our 27FB.
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09-13-2018, 01:57 PM
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#12
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Site Team
2009 25' FB International
2018 27' Globetrotter
Tavares
, Florida
Join Date: Mar 2014
Posts: 3,654
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Thanks for all the responses to my questions. I appreciate your collective assistance!
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09-21-2018, 05:12 PM
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#13
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Rivet Master
1994 30' Excella
alexandria
, Kentucky
Join Date: Aug 2004
Posts: 2,310
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I use the tow/haul anytime I am towing most anything. It is great how the transmission shifts and controls the load better with both the tow/haul and exhaust brake activated.
BTW - you want to run the exhaust brake frequently so it exercises the variable vanes in the turbo. It will also extend the life of the service brakes.
Your going to love this new truck.
__________________
Steve, Christy, Anna and Phoebe (Border Collie)
1994 Classic 30'11" Excella - rear twin
2009 Dodge 2500, 6 Speed Auto, CTD, Quad Cab, Short Bed
Hensley Arrow hitch with adjustable stinger
WBCCI # 3072
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09-21-2018, 06:31 PM
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#14
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Builder of Diesel Jeeps
2014 28' International
Sedona
, Arizona
Join Date: Sep 2014
Posts: 226
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Quote:
Originally Posted by Hans627
Do you use Tow/Haul mode on your diesel TV's? I have a new Cummins and am trying to understand when to use it. Or should it be used anytime the truck is towing?
Thanks!
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The tow vehicle owners manual will describe the tow/haul mode. Many of the above comments are in-line with what you'll (hopefully) read for yourself.
__________________
14 Serenity 28'
15 Grand Cherokee EcoD
#5261
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09-21-2018, 08:33 PM
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#15
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Half a Rivet Short
2017 30' Classic
2022 Interstate 24X
Carlisle
, Pennsylvania
Join Date: May 2017
Posts: 15,674
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Hi
I really can't see any reason *not* to use it when towing. The gas miles with and without (when towing) are pretty much identical ....
Bob
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09-22-2018, 07:48 AM
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#16
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Rivet Master
2013 31' Classic
billings
, Montana
Join Date: Feb 2010
Posts: 3,570
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Quote:
Originally Posted by Hans627
Do you use Tow/Haul mode on your diesel TV's? I have a new Cummins and am trying to understand when to use it. Or should it be used anytime the truck is towing?
Thanks!
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Your choice...I almost never use mine.....I do not like the violent down shifting on the down hill side of a mountain pass......it happens when you touch your service brakes with the engine brake on.....no problems with the Chrysler 6 speed transmission ... my 07 had 110,000......my 17 has 26,000 all towing our as...coast to coast......
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09-22-2018, 10:48 AM
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#17
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Rivet Master
2012 27' Flying Cloud
W
, New England
Join Date: Oct 2012
Posts: 7,402
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I go in and out. Don’t have the manual handy bit I think it only wants TH mode when carrying 70% towing capacity or something like that. Since my trailer doesn’t come close, I don’t use it as a norm. I do use it when in hilly areas. It drops the rpm when going uphill and increases engine braking when going downhill. But on flat ground, rpm are lower without it (usually - too many nuances to describe here...). Bottom line - I turn it on when heading up/down hills, and off when on flat land.
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09-22-2018, 11:00 AM
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#18
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4 Rivet Member
1972 31' Excella 500
2017 30' Classic
Grapeview
, Washington
Join Date: Sep 2017
Posts: 456
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Yes we do, always. Fully loaded we tip the scales just under 18k sometimes over.
Safe travels and best regards.............
__________________
Scott & Liz
2017 Classic
2016 RAM 3500 6.7
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09-22-2018, 03:13 PM
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#19
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Rivet Master
2016 28' International
Sioux Falls
, SD
Join Date: Oct 2017
Posts: 576
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Use it when towing, always.
Ours is 2017 Ram 2500.
__________________
2016 Int. Signature 28' w/ ProPride 3P-1400 Hitch
Mich. LTX w/ 16" Sendels, Centramatics
2017 Ram 2500 4x4 Diesel, CG1800 Bed slide, Leer topper
Better to live one day a lion than a lifetime a sheep. Camp hard, camp often
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09-22-2018, 03:35 PM
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#20
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4 Rivet Member
2009 25' FB Flying Cloud
1973 31' Sovereign
Mount Angel
, Oregon
Join Date: Mar 2014
Posts: 259
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I LOVE tow-haul mode. Use it on downhills or in inner-city / heavy traffic. It has saved me several times when someone (perhaps unaware that I can't stop on a dime) slips in front of me when there isn't any room.
Susan
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