17.8 MPG can be done with the V10. - Page 4 - Ford Truck Enthusiasts Forums



Modular V10 (6.8l) SPONSORED BY:

17.8 MPG can be done with the V10.

Reply
 
 
 
LinkBack Thread Tools Search this Thread
  #46  
Old 11-10-2013, 08:19 AM
Dogmann Dogmann is offline
Senior User
 
Join Date: Nov 2011
Posts: 319
Dogmann is starting off with a positive reputation.
My thread...

http://www.ford-trucks.com/forums/12...-question.html
Reply With Quote
  #47  
Old 11-10-2013, 08:49 AM
MDSuperDuty's Avatar
MDSuperDuty MDSuperDuty is offline
Postmaster
 
Join Date: Mar 2008
Posts: 2,710
MDSuperDuty is a splendid one to beholdMDSuperDuty is a splendid one to beholdMDSuperDuty is a splendid one to beholdMDSuperDuty is a splendid one to beholdMDSuperDuty is a splendid one to beholdMDSuperDuty is a splendid one to behold
Quote:
Originally Posted by Dogmann View Post
I love my truck. It's bulletproof. Runs like a dream. So smooth. So much power. But 7.1mpg! !!!! Something's not right.
Did you not read my post about throwing off you odometer with larger tires???
Reply With Quote
  #48  
Old 11-10-2013, 08:51 AM
Dogmann Dogmann is offline
Senior User
 
Join Date: Nov 2011
Posts: 319
Dogmann is starting off with a positive reputation.
Yeah I read it. But 3.0 difference with tires?
Reply With Quote
  #49  
Old 11-10-2013, 09:03 AM
MDSuperDuty's Avatar
MDSuperDuty MDSuperDuty is offline
Postmaster
 
Join Date: Mar 2008
Posts: 2,710
MDSuperDuty is a splendid one to beholdMDSuperDuty is a splendid one to beholdMDSuperDuty is a splendid one to beholdMDSuperDuty is a splendid one to beholdMDSuperDuty is a splendid one to beholdMDSuperDuty is a splendid one to behold
No 1.5 for tires and maybe .5 with the reading being off. Yes I believe with those tires (315's yes?) and calibration for them you're looking at 8-9 mpgs all around. The odo is off so maybe thats why you're calculating 7. These are thirsty rides and when you dig into their power they drink like crazy.
Reply With Quote
  #50  
Old 11-10-2013, 09:12 AM
Dogmann Dogmann is offline
Senior User
 
Join Date: Nov 2011
Posts: 319
Dogmann is starting off with a positive reputation.
Would the sct 3015 tuner be the correct one to use on my 08?
Reply With Quote
  #51  
Old 11-10-2013, 09:36 AM
MDSuperDuty's Avatar
MDSuperDuty MDSuperDuty is offline
Postmaster
 
Join Date: Mar 2008
Posts: 2,710
MDSuperDuty is a splendid one to beholdMDSuperDuty is a splendid one to beholdMDSuperDuty is a splendid one to beholdMDSuperDuty is a splendid one to beholdMDSuperDuty is a splendid one to beholdMDSuperDuty is a splendid one to behold
A tuner will NOT improve mpg on a V10 and if it does maybe .5. But that's on a no fun economy tune. I use my truck for hauling and fun. I have a 30mpg beater car for commuting. I know you're trying hard to improve mpgs but in all honesty it's a lost cause with a V10. Add large tires and it's a near impossibility. Sorry man.
Reply With Quote
  #52  
Old 11-10-2013, 09:37 AM
Irelands child's Avatar
Irelands child Irelands child is offline
Posting Guru
 
Join Date: Nov 2005
Location: Upstate NY
Posts: 1,648
Irelands child is a splendid one to beholdIrelands child is a splendid one to beholdIrelands child is a splendid one to beholdIrelands child is a splendid one to beholdIrelands child is a splendid one to beholdIrelands child is a splendid one to behold
Quote:
Originally Posted by Dogmann View Post
Would the sct 3015 tuner be the correct one to use on my 08?

Tuners CAN be great for certain things like more power for hauling that load or help shift points, but trying to get a bunch more gas mileage isn't their main purpose. You can buy a heluva lot of 87 octane gas for the 4 to 600+/- dollar cost for one of them. Then often there is the need for 91 or 93 octane at a bunch more cents per gallon also the fact that you just plain like to hammer the throttle harder to use those additional horsepower. This is a 7-8000 pound vehicle that needs lots of energy to get it going from a stop then keep that aerodynamically challenged front end splitting air(think barn door aero). And lastly, engine life - and whether any manufacturer want to admit to it, but these tuners do reduce engine life by some amount - even a so-called bullet proof 3 valve V10.

But with that said, it IS your truck to do what you feel you want
Reply With Quote
  #53  
Old 11-10-2013, 10:16 AM
Dogmann Dogmann is offline
Senior User
 
Join Date: Nov 2011
Posts: 319
Dogmann is starting off with a positive reputation.
I was just looking for a tuner to calibrate my speedo to the larger tires.

I'll be going on a long trip so I'm going to write down my mileage and really try to nail down my MPG.
Reply With Quote
  #54  
Old 11-10-2013, 01:30 PM
dkf's Avatar
dkf dkf is offline
Post Fiend
 
Join Date: Mar 2007
Location: Pa
Posts: 9,912
dkf is a splendid one to beholddkf is a splendid one to beholddkf is a splendid one to beholddkf is a splendid one to beholddkf is a splendid one to beholddkf is a splendid one to beholddkf is a splendid one to beholddkf is a splendid one to behold
Most tuners won't correct the speedo for larger tires since the ABS system in involved. A Ford dealer can correct the speedo. Then with the speedo corrected you can add the tuner which will save that new "stock" calibration.

If you are running 35's and have 3.73s on top top of that it will add a lot more load and rolling resistance for the engine and trans to deal with. The result of the engine/trans working harder will be reduced mpg by an often considerable amount. Add in hills, stop and go driving, etc and the mpg really drops. If you don't have at least 4.30 gears with 35s I would consider a gear change.

Use a GPS to obtain your miles traveled and to verify your speedo is accurate after you get it changed.
Reply With Quote
  #55  
Old 11-10-2013, 01:45 PM
Irelands child's Avatar
Irelands child Irelands child is offline
Posting Guru
 
Join Date: Nov 2005
Location: Upstate NY
Posts: 1,648
Irelands child is a splendid one to beholdIrelands child is a splendid one to beholdIrelands child is a splendid one to beholdIrelands child is a splendid one to beholdIrelands child is a splendid one to beholdIrelands child is a splendid one to behold
Quote:
Originally Posted by dkf View Post

Use a GPS to obtain your miles traveled and to verify your speedo is accurate after you get it changed.
Heck, just use a GPS as a speedometer as well as odometer. Also you can use to check the truck speedo/odo and calculate fuel mileage.
Reply With Quote
  #56  
Old 11-10-2013, 11:24 PM
dkf's Avatar
dkf dkf is offline
Post Fiend
 
Join Date: Mar 2007
Location: Pa
Posts: 9,912
dkf is a splendid one to beholddkf is a splendid one to beholddkf is a splendid one to beholddkf is a splendid one to beholddkf is a splendid one to beholddkf is a splendid one to beholddkf is a splendid one to beholddkf is a splendid one to behold
Quote:
Originally Posted by Irelands child View Post
Heck, just use a GPS as a speedometer as well as odometer. Also you can use to check the truck speedo/odo and calculate fuel mileage.
That does not give the PCM the accurate information it should have. Correcting for the larger tires is the right way to do it.
Reply With Quote
  #57  
Old 11-11-2013, 04:23 AM
Shepherd2 Shepherd2 is offline
Elder User
 
Join Date: Sep 2009
Posts: 512
Shepherd2 has a good reputation on FTE.Shepherd2 has a good reputation on FTE.Shepherd2 has a good reputation on FTE.
I used the Torque app on my cell and on a level road, ok slight downhill, @ 60, if I keep the throttle around 25% and load under 75% I can get 19mpg. As soon as the load hits 80% it drops pretty quick to 14 but I don't know how accurate it is. The lie o meter rarely varies from 11.4.
Reply With Quote
  #58  
Old 11-11-2013, 09:48 AM
NovaNewfie's Avatar
NovaNewfie NovaNewfie is offline
Senior User
 
Join Date: Nov 2013
Location: Advocate Hbr. Nova Scotia
Posts: 225
NovaNewfie is gaining momentum as a positive member of FTE.NovaNewfie is gaining momentum as a positive member of FTE.
I just bought an 05 CC LWB 4x4 Dually V10 I'm seeing 8.5 on the LOM with stock 245/75/17E tires at 50 psi.
Reply With Quote
  #59  
Old 11-16-2013, 05:40 PM
MyFordEx2002 MyFordEx2002 is offline
New User
 
Join Date: Nov 2013
Posts: 14
MyFordEx2002 is gaining momentum as a positive member of FTE.
For a whole tank best I ever got was 12.5. I can get 19 for short strecthers on my sgii
Reply With Quote
  #60  
Old 11-16-2013, 05:49 PM
NovaNewfie's Avatar
NovaNewfie NovaNewfie is offline
Senior User
 
Join Date: Nov 2013
Location: Advocate Hbr. Nova Scotia
Posts: 225
NovaNewfie is gaining momentum as a positive member of FTE.NovaNewfie is gaining momentum as a positive member of FTE.
I calculated my fuel over. 1200 miles the last three days and had 7.834 mpg. Half of that was towing a light trailer and the return trip I had 3k lbs on truck and seven on the trailer. Mostly hiway 65 mph.
Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
MPG after dpf delete davalt75 6.4L Power Stroke Diesel 24 08-19-2013 02:46 PM
6.4L 17.8 mpg SMONTANA 6.4L Power Stroke Diesel 17 03-28-2012 04:50 PM
wicked wheel ? yme450 1999 - 2003 7.3L Power Stroke Diesel 9 10-19-2010 07:45 PM
Stupid ? why the big swing in PSD mpg and not V10 mpg Bagger Modular V10 (6.8l) 96 07-06-2006 07:32 PM
MPG difference w/ lift & 37" tires?? BuCKxWiLD 1999 to 2016 Super Duty 5 02-28-2006 01:21 AM


Go Back   Ford Truck Enthusiasts Forums >

Tags
08, 10, 68, ethanol, f250, f350, ford, fuel, gallon, improving, liter, mapquesmiles, mileage, missing, mpg, v10

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 Off
Trackbacks are On
Pingbacks are On
Refbacks are On

Forum Jump


All times are GMT -5. The time now is 09:14 AM.


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. Ford® is a registered trademark of the Ford Motor Company.