Go Back   Ford Truck Enthusiasts Forums > Super Duty/Heavy Duty > Super Duty & Heavy Duty
Sign in using an external account
Register Forgot Password?


Super Duty & Heavy Duty 1999 to current Ford F250, F350, F450 and F550 Super Duty with diesel V8 and gas V8 and V10 engines SPONSORED BY:

Welcome to Ford-Trucks Forums!
Welcome to Ford-Trucks.com.

You are currently viewing our forums as a guest, which gives you limited access to view most discussions and access our other features. By joining our community you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is fast, simple and absolutely free so please, join the Ford-Trucks Forums community today!





 
Reply
 
 
 
 
LinkBack Thread Tools Search this Thread
  #1  
Old 01-25-2012, 04:43 PM
Platinum Knight's Avatar
Platinum Knight Platinum Knight is offline
New User
 
Join Date: Jan 2012
Location: Delmar Delaware
Posts: 7
Platinum Knight is starting off with a positive reputation.
Should I use the Tow/Haul feature?

Just bought a 2010 F250 Super Duty Turbo Diesel last month with 7,500 miles on it. I plan on using it to haul a 18' tandem trailer max weight 5k lbs. With advice from a friend I added two up grades (SCT Livewire Flash Tool and a Bully Dog Cold air intake) to improve performance and fuel mileage.... My question is should I use the tow/haul feature or normal transmission. When I don't use the tow/haul my RPMs are around 1500 at 55mph and under 10 psi......With the tow/haul it stays around 2000 rpms and 10 psi.......I'm getting 14 mpg with the trailer and 24 mpg without with the upgrades.......Sorry if this is a stupid and long winded question...Newbie here...lol
Reply With Quote
  #2  
Old 01-25-2012, 04:57 PM
jlmotox's Avatar
jlmotox jlmotox is offline
Elder User
 
Join Date: Mar 2007
Location: Canyon Country
Posts: 542
jlmotox is starting off with a positive reputation.
congrats on the new truck!! and welcome to FTE!

my opinion on tow mode is use it if the transmission is hunting for gears (keeps shifting) usually on hills this will happen. I also like to use it on downhills, makes holding a speed easier and less use of the brakes....with your trailer weight you could probably get away with not using the tow mode most of the time.

24mpg unloaded? you must drive downhill with a tail wind alot! lol
__________________
2005 F250 FX4 4x4 PSD Lariet cc sb srw
4" Mbrp turbo back exhaust,Muffler delete, Airaid intake, ARP studs, blue spring mod, SCT X4 tuner, Gearhead tunes, Warn 12,000lb winch w/hide a winch bumper, custom light bar with 4 - 8" lights, 37" Toyo M/T tires, 8" lift, Pioneer Navigation w/ XM, reverse camera, 10" Kicker sub, 15% tint, reverse lights (aka A-hole lights), Firestone air bags, Truxedo bed cover
Reply With Quote
  #3  
Old 01-25-2012, 06:47 PM
tgreening's Avatar
tgreening tgreening is offline
Elder User
 
Join Date: Dec 2009
Location: Ohio
Posts: 783
tgreening has a good reputation on FTE.tgreening has a good reputation on FTE.
Quote:
Originally Posted by Platinum Knight View Post
I'm getting 14 mpg with the trailer and 24 mpg without with the upgrades.......Sorry if this is a stupid and long winded question...Newbie here...lol


This mileage is highly suspect. Are you relying on the dash display? While accurate enough stock (at least mine is) they are notoriously bogus when you have a tuner installed. Hand calculate is the only accurate way to do it when tuned.
__________________
2008 F-450 DRW Job 3. Motor, wheels, tires, electric stuff, electronic stuff, plastic stuff. Oh, windows and seats and stuff.........Impressed yet?
Reply With Quote
  #4  
Old 01-25-2012, 07:01 PM
RV_Tech's Avatar
RV_Tech RV_Tech is offline
Postmaster
 
Join Date: Jan 2010
Posts: 3,795
RV_Tech has a brilliant futureRV_Tech has a brilliant futureRV_Tech has a brilliant futureRV_Tech has a brilliant futureRV_Tech has a brilliant futureRV_Tech has a brilliant futureRV_Tech has a brilliant futureRV_Tech has a brilliant futureRV_Tech has a brilliant futureRV_Tech has a brilliant futureRV_Tech has a brilliant future
That trailer is next to nothing. Unless it hunts, leave the tranny alone.

Steve
__________________
RVDA/RVIA Master Certified RV Technician
You think you're confused?
2002 F350 Dually, Rhino Liner, Edge Evolution (running in stock mode), 4" exhaust, 6.0 cooler
2010 F150 super cab, box stock, bed slide, ARE bed cover
Reply With Quote
  #5  
Old 01-25-2012, 08:08 PM
Quad Racer's Avatar
Quad Racer Quad Racer is offline
Posting Guru
 
Join Date: Jun 2011
Location: Cincy
Posts: 1,785
Quad Racer is a name known to allQuad Racer is a name known to allQuad Racer is a name known to allQuad Racer is a name known to allQuad Racer is a name known to allQuad Racer is a name known to all
I usually only use mine when I run through the northern Kentucky rolling hills. Like stated earlier, the ups and downs of hills. My trailer is slightly heavier than yours and I have a V10 so she is a screamin 3.5-4k RPMs bout 8 MPG specially when JO's get you bogged down and take away my run at it.
__________________

08 XLT 250 CC V10 4.10 - 5 Star tunes (giddyup),18"x9" XD Addicts, 295 70 18 Trail Grapplers, Prestige fender flares, side marker lights
2001 E 250 Work beast

Jason
Reply With Quote
  #6  
Old 01-26-2012, 06:16 PM
Platinum Knight's Avatar
Platinum Knight Platinum Knight is offline
New User
 
Join Date: Jan 2012
Location: Delmar Delaware
Posts: 7
Platinum Knight is starting off with a positive reputation.
Quote:
Originally Posted by tgreening View Post
This mileage is highly suspect. Are you relying on the dash display? While accurate enough stock (at least mine is) they are notoriously bogus when you have a tuner installed. Hand calculate is the only accurate way to do it when tuned.
WOW I did as you suggested and was very disappointed with my results. Huge difference in the numbers...actually getting 13.1 with the trailer and I've not had the chance to calculate without.....So my dash read out is useless now???? bummer
Reply With Quote
  #7  
Old 01-26-2012, 06:51 PM
Skinsfan6's Avatar
Skinsfan6 Skinsfan6 is offline
Elder User
 
Join Date: Nov 2006
Location: Mathews, VA
Posts: 560
Skinsfan6 has a very good reputation on FTE.Skinsfan6 has a very good reputation on FTE.Skinsfan6 has a very good reputation on FTE.Skinsfan6 has a very good reputation on FTE.
+1 Do not use tow/haul unless you are in and out of overdrive.
+1 Tuners screw up your overhead mpg readout. Prior to my tuner my readout was within 2 tenths almost every time. Now it usually displays about 2 mpg better than I am actually getting.
__________________
2000 Excursion Limited 4x4-7.3 PSD, V/B swap, front add-a-leaf, 2" block rear, DP Tuner (Stock, No Start, 1300 Idle, 60E, 80E, 80T), CCV, 16x8 Eagle Alloys, 285 BFG KOs (316,xxx miles)
2012 Focus SE Hatchback
1988 E350 Winnebago Minnie Winnie
Reply With Quote
Old 01-26-2012, 06:51 PM
 
 
 
Reply

Go Back   Ford Truck Enthusiasts Forums > Super Duty/Heavy Duty > Super Duty & Heavy Duty

Tags
appearce, bully, dog, duty, feature, ford, haul, info, mileage, performance, programmer, super, tow, towhaul, truck, tune

Thread Tools Search this Thread
Search this Thread:

Advanced Search

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 On
Trackbacks are On
Pingbacks are On
Refbacks are On

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Tow-haul mode? lewis racing 6.0L Power Stroke Diesel 8 08-26-2014 12:35 PM
Tow/Haul usage almostgone Super Duty & Heavy Duty 11 03-16-2014 02:10 PM
Tow/Haul - Engage At Stop Or On The Fly gwpowell 6.0L Power Stroke Diesel 13 05-20-2009 05:28 AM
Should tow/haul always be used? dcbollinger Modular V10 (6.8l) 6 07-20-2005 07:16 AM
Tow/haul mode use JD Dixon Super Duty & Heavy Duty 5 12-30-2004 09:26 AM



All times are GMT -5. The time now is 11:39 PM.


Powered by vBulletin® Version 3.8.7 AC1
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Advertising - Terms of Use - Privacy Statement - Jobs
This forum is owned and operated by Internet Brands, Inc., a Delaware corporation. It is not authorized or endorsed by the Ford Motor Company and is not affiliated with the Ford Motor Company or its related companies in any way. FordŽ is a registered trademark of the Ford Motor Company.

vbulletin Admin Backup