Jayco RV Owners Forum

Thread Tools Display Modes
Old 05-05-2014, 11:29 AM   #11
Senior Member
havnfun's Avatar
Join Date: Jan 2014
Location: Grants, New Mexico
Posts: 2,636
Lots of opinions on this one. So what I am gleaning from all this is OD is okay if you have it in tow/haul.

Or... is it never use OD when you are towing?? Hard on tranny.


Now I'm really confused.

2014 Jayflight 24FBS Elite. 2009 F150 Supercab UNICORN, 5.4L ,3.73, HD/Max Tow Package, Equal-i-zer 1K,
Progressive EMS-LCHW30, TST 507RV TPMS, Hydro Life HL-200, Maxxis 8008.
Best friend wife, Di, and dog Cooper. RETIRED 6/30/16. WOOHOO!
havnfun is offline   Reply With Quote
Old 05-05-2014, 11:34 AM   #12
Join Date: Mar 2014
Location: Johnsonville
Posts: 58
Use OD unless tranny is hunting for gears.

Jayco 32bhds

Daytripper is offline   Reply With Quote
Old 05-05-2014, 12:43 PM   #13
Senior Member
Join Date: Aug 2013
Location: NC
Posts: 973
When I pulled with gas I never used OD. On many newer trucks you have a transmission temp gage. If you have that gage it will help you decide how to use your rpm's to keep things cooler. When I was towing with my F150 I would program out 6'th gear and put it in tow/haul and go. Watching the trans temp in gage mode convinced me that was a good decision.
No man has a good enough memory to be a successful liar. Abraham Lincoln

2016 36FBTS Pinnacle
2016 F350, 6.7, 4x4, DRW, long bed
B & W Companion 5th wheel Hitch
eldermike is offline   Reply With Quote
Old 05-05-2014, 03:46 PM   #14
Senior Member
Join Date: Feb 2012
Posts: 923
Originally Posted by 1wayhighway View Post
If you have a tow haul put it there and forget about it. That's what it is there for. If you don't have a tow/haul mode then no OD.
This! ^^^
dewey02 is offline   Reply With Quote
Old 05-05-2014, 03:56 PM   #15
Join Date: Mar 2014
Location: Johnsonville
Posts: 58
Driving With An Automatic
Overdrive Transmission
With certain automatic overdrive transmissions,
towing – especially in hilly areas – may cause
excessive shifting between overdrive and the next
lower gear.
– To eliminate this condition and achieve steadier
performance, overdrive can be locked out (see
vehicle Owner's Manual)
– If excessive shifting does not occur, use overdrive
to optimize fuel economy
– Overdrive may also be locked out to obtain
engine braking on downgrades
– When available, select Tow/Haul Mode to
automatically eliminate unwanted gear search
and help control vehicle speed when going downhill.

Straight from the Expy manual.

Jayco 32bhds

Daytripper is offline   Reply With Quote
Old 05-05-2014, 07:50 PM   #16
Join Date: Mar 2013
Location: Finger Lakes of NY
Posts: 89
I tow 5000# with a 5.7 ram. 5 and 6 are both overdrive gears. I will use 5 if I am on a long level or downgrade. I most often just use Tow/Haul and 4th gear.
5th gear at 62MPH I turn about 1900 RPMs, 4th gear about 2200. Rig is much more responsive in 4th at 2200.

On a recent 1800 mile trip my lie o meter gave me .2 better mileage in 4th and the tranny ran 10 to 15 degrees cooler.
Pitch1 is offline   Reply With Quote
Old 05-05-2014, 09:03 PM   #17
Senior Member
Tail_gunner's Avatar
Join Date: Mar 2013
Location: da U.P.
Posts: 340
Like I said:
Originally Posted by Tail_gunner View Post
It depends on the vehicle, there really isn't a clear cut answer.

I think the closer you are to the towing limit of your tow vehicle the greater chance of having to be in tow mode or lock out OD. In my case, I am only a little more than halfway to my towing capacity. So I can tow in 6th gear/OD all day without the truck breaking a sweat. But a half ton truck truck pulling near it's towing limit will have to work harder.
FAA licensed A&P aircraft mechanic, ex-RV dealer parts dept
Retired B-52 Gunner/Flight Examiner, B-52 Crew Chief

2016 Jayco Eagle HT 29.5 FBDS w/ 15,000 BTU AC, 50 amp service, upgraded counter top, thermal pane windows, elec. stab jacks, outside grill, backup camera and MORryde pin box.
Tail_gunner is offline   Reply With Quote
Old 05-05-2014, 09:26 PM   #18
Senior Member
1wayhighway's Avatar
Join Date: Feb 2014
Location: Ortonville, MI
Posts: 109
I had no idea how our truck was going to pull in the hills let alone on the flats. After a couple hours pulling on our first trip I figured out that 5th worked best (no shifting up or down) and this kept the tranny temp the same as if I wasn't pulling. Daytripper quoted the manual and that's the best guide, after that you just have to pull your TT and see how your vehicle does.
2013 Ford F150 SCREW, 5.0, 3.55, tow package
2014 White hawk 28DSBH
1wayhighway is offline   Reply With Quote
Old 05-07-2014, 10:23 PM   #19
Senior Member
Join Date: Apr 2013
Location: White Rock, BC. Canada
Posts: 374
I tow with a 2003 Expedition and it depends on the speed, hills and head winds. At 50-60 mph I turn it off. From 60-65 I turn it back on. The torque peak is at 2500 on the 5.4 so the closer you are to that the better it pulls.

Do you have the towing package? If not you may have the 3.55 gears instead of the 3.73 which means you'll definitely want it off.
]2013 Jay Feather X213
2003 Ford Expedition
Paulx213 is offline   Reply With Quote
Old 05-11-2014, 07:58 PM   #20
Senior Member
Seann45's Avatar
Join Date: Jun 2010
Location: Saskatoon Sask Canada
Posts: 9,701
Use OD with tow haul engaged... IF the transmission starts to hunt for a gear.. shifting up and down.. THEN manually downshift it,

2004 Chev Silverado Duramax optioned past the max. 2009 Jayco Eagle 308 RLS 765 watts of solar, 6-6 volt batteries (696 amp hour), 2000 watt (4000 surge) whole house inverter.
175 days boondocking in 2017
215/2016, 211/2015, 196/14, 247/13, 193/12

Seann45 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 State Campgrounds

Reviews provided by

Powered by vBadvanced CMPS v3.2.3

All times are GMT -6. The time now is 11:32 PM.

Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Copyright 2002-2016 Social Knowledge, LLC All Rights Reserved.