Thread Tools Display Modes
Old 08-04-2016, 12:15 PM   #11
Senior Member
Join Date: Mar 2015
Location: Fort White, FL
Posts: 120
If it were me I would read the ford manual for an F450 chassis. My Ford expedition manual specifically says to leave the tow mode off unless the transmission is downshifting excessively or in hilly terrain, even when towing.

So I leave the tow mode off unless i see the tranny bouncing in and out of OD.

With this being a motorhome, you have quite a bit of frontal area to overcome wind resistance in just the RV itself, which is also referred to in the manual, so towing with it on is probably not a bad idea.

Main thing is just make sure its not bouncing back and forth between gears. If it takes being in tow mode to do that, then do that.

My $.02

foretm is offline   Reply With Quote
Old 08-04-2016, 12:15 PM   #12
Junior Member
Join Date: Feb 2013
Posts: 19
For 4 years we pulled our trailer in "d" never used tow haul. Tried it and the P P M jumped way up, gas went way down.. just drive at 60, and let it slow down at inclines, it will catch up,on down hill side .if trans tries to downshift, just let up on gas. Keep a steady RPM, unless you have an oil well in back yard, or won the lottery...

tom3205 is offline   Reply With Quote
Old 08-04-2016, 12:20 PM   #13
Join Date: Apr 2013
Location: Cascade Idaho
Posts: 139
I live in the mountains of Idaho and ONLY use the two/haul button on steep grades. Downhill it keeps your brakes working.
dahagen is offline   Reply With Quote
Old 08-04-2016, 01:00 PM   #14
Junior Member
Join Date: Aug 2016
Location: Grants Pass, OR
Posts: 3
Shift Points


What happens when you push the Tow Button, the computer changes the Transmission Shift Points to help when you when you are pulling a grade or a hill.

Tim Hill
2012 Forest River Surveyor Select SV264
2013 Chevy Silverado HD2500 with Duramax 6.6 HD
timcbs is offline   Reply With Quote
Old 08-04-2016, 01:01 PM   #15
Join Date: Jun 2013
Location: Roseburg, OR
Posts: 36
I agree with Foretm. Tow mode just turns off the axle shift (OD) so unless it is bouncing your fuel use will be better not using it.
Chapparal lite - 266Sab
Bocamo is offline   Reply With Quote
Old 08-04-2016, 01:24 PM   #16
Senior Member
twojump36's Avatar
Join Date: Jun 2015
Location: Keizer Oregon
Posts: 165
My two cents....When towing my Jeep Wrangler, I use the tow haul mode when descending steep grades or if I'm pulling a steep grade...
If I'm on flat roads, the OD kicks in and off we go.... most roads and small hills is just fine on regular mode... When you hit the passes or really steep climbs, gas mileage is out the window anyway... so why worry about it?.
Keep an eye on the RPM's and the Temps... then just roll on.
You probably didn't buy a motorhome for fuel mileage anyway.
The tow haul mode really bothers me on small hills or at the bottom of the big ones that I just went down... The tranny doesn't know that you want fuel and won't hardly shift normally until you take it out... at least that's how it is on my FR3 30DS. So I when I climb a hill in tow mode, I will go down the other side in tow mode... at the bottom I disengage the tow haul and resume normal operation unless there is another big hill in front of me...
You'll find out what works for you... then just do what you want when you want to do it...

The most important thing is to have fun in the process...
2015 FR3 30 DS
1995 Wrangler
Miles 3708
Days Camped 28
twojump36 is offline   Reply With Quote
Old 08-04-2016, 01:49 PM   #17
Senior Member
Join Date: Apr 2015
Location: Middle GA
Posts: 193
The owners' manual will let you know. I know my truck says not to use it on the interstate, doing normal highway speeds. It also says to be sure to use it in slow/stop-and-go traffic and when accelerating from slower speeds. I usually turn it off, when I get into overdrive and then turn it back on, when on the off ramp after I am down to about 45mph. Lastly, the manual says to use the towing mode in the mountains, but not when the truck is back up to highway speeds (I took that to mean in the plateaus between steep areas).

A wee bit confusing at first, but after towing with it a few times, I could tell when I needed to use it and when I didn't.
Ben and Doreen
Home Away From Home - 2017 PT Crusader 315RST
TV - 2008 F250 Lariat 4X4 6.4 Diesel
42 nights camping in 2015
49 nights so far in 2016 (Still Not Enough!)
ben31 is offline   Reply With Quote
Old 08-04-2016, 02:11 PM   #18
Phat Phrog Stunt Team
AquaMan's Avatar
Join Date: Apr 2012
Location: Ohio
Posts: 5,942
One thing to remember, tow/haul has different effects and usage between gas trucks, diesel trucks, and motorhomes. I've had all three and each had their own individual use circumstances. To say that, if you're towing you should use it, doesn't really apply to the heavier duty trans.

Sent from my iPhone using Forest River Forums
2016 Georgetown 364TS
Nights Camped
2014 - 56
2015 - 41
2016 - 64
AquaMan is offline   Reply With Quote
Old 08-04-2016, 02:31 PM   #19
RudysWorld's Avatar
Join Date: Jan 2012
Location: Collierville, TN
Posts: 343
I had this discussion with the Ford rep at the FROG Rally last year. Tow/Haul will smooth transmission shifts and engage more aggressive downshift when going down hill and braking. In other words it will limit the number of shifts the transmission makes when trying to find the right gear for optimum mpg and downshift to aid in braking. This is for the V10 motorhome chassis, this would be different for other manufacturers and motor drive train configurations. He said you might see a slight drop in mpg with tow/haul engaged but would definitely help in downhill and braking situations. Use as you see fit.

Rudy - 10 year old long haired dachshund
2011 Georgetown 350TS
2013 Chevrolet Equinox toad
RudysWorld is offline   Reply With Quote
Old 08-04-2016, 02:36 PM   #20
Site Team
Mr. Dan's Avatar
Join Date: Mar 2014
Location: Grayson County, Texas
Posts: 3,316
Originally Posted by AquaMan View Post
One thing to remember, tow/haul has different effects and usage between gas trucks, diesel trucks, and motorhomes.
Sent from my iPhone using Forest River Forums
Yes, indeed AND year to year in the same make/model.

SEARCH is your friend!
FR Wildcat 295RSX / GMC Sierra

Nights Camped: 2013 = 49 / 2014 = 74 / 2015 = 74 / 2016 = 74 (booked = 11)
Mr. Dan is offline   Reply With Quote

Thread Tools
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

» Virginia Campgrounds

Reviews provided by is not in any way associated with Forest River, Inc. or its associated RV manufacturing divisions.

Our Communities

Our communities encompass many different hobbies and interests, but each one is built on friendly, intelligent membership.

» More about our Communities

Automotive Communities

Our Automotive communities encompass many different makes and models. From U.S. domestics to European Saloons.

» More about our Automotive Communities

Marine Communities

Our Marine websites focus on Cruising and Sailing Vessels, including forums and the largest cruising Wiki project on the web today.

» More about our Marine Communities

Copyright 2002-2015 Social Knowledge, LLC All Rights Reserved.

All times are GMT -5. The time now is 04:41 AM.