Split Personalities - Ford Truck Enthusiasts Forums

Go Back   Ford Truck Enthusiasts Forums > Performance, Engines & Troubleshooting > 6.2L V8
Log In 

6.2L V8 Discuss the 6.2L V8

Split Personalities

LinkBack Thread Tools Search this Thread
Old 06-03-2014, 07:18 PM
lawnspecialties lawnspecialties is offline
Senior User
Join Date: Oct 2005
Location: Garner, NC
Posts: 200
lawnspecialties is starting off with a positive reputation.
Split Personalities

Pulled the 20' enclosed trailer from Raleigh to just west of Rock Hill, SC this past weekend. First pull with the 5 Star 93 octane tune. A little better than the 87 but nothing to get excited about. No better fuel economy either. Still much better than stock, though.

But here's something that has happened several times, whether I'm running stock, 87 octane tune, or the 93 tune this past weekend. When we left home Saturday afternoon, the truck just felt like it was "tired". Transmission often downshifted just to climb the slightest of inclines. Another way to describe it would be what it would feel like if the trailer had a parachute behind it. Interstate travel virtually the whole way and speeds between 65-68 mph. Truck showed 7.8 mpg.

Truck sat the entire time once arrived until we left for home Sunday afternoon (24 hours). When we left, the engine had new life. It pulled the trailer as if it weighed half of what it does. Transmission hardly ever downshifted because the torque felt almost "diesel-like". At one time, mpg's were at 8.9 and finally averaged 8.7 once we stopped for a drink about two hours after we left. When I cranked the truck back up from the 15 minute break and got back on the interstate, it was virtually back to its former self. The parachute was back out and I reset the mpg meter and we were back to the 7.8 mpg range. It drove like this pretty much all the way home.

The truck did fine, either way. But its amazing how different it seemed to perform. I wondered if the computer had adjusted things because of the long tow but if that's the case, why did it go back to its former ways once we stopped for just a 15 minute stop.

I don't think this is all in my head. It certainly feels different and the mpg's tell the story. I don't think this is a 5-Star thing either because its done it in stock form as well.

If there are different modes to this motor when towing or not, how can I keep it in that mode it was in coming home for those two hours? It was amazing for a gas engine.
Reply With Quote
Old 06-03-2014, 07:52 PM
T diesel T diesel is offline
Elder User
Join Date: Nov 2011
Location: Sterling, ct.
Posts: 523
T diesel is gaining momentum as a positive member of FTE.T diesel is gaining momentum as a positive member of FTE.
My experience as well.
It loves to be pushed.
2013 F-250 lariat scsb FX4.
6.2. 3.73 lockers. Rear wheel liners.

Camper package.
Pullrite 18K lb Superslide, Line X sprayed bed.
Krown rust protected.
"That which can be asserted without evidence, can be dismissed without evidence"
- Christopher Hitchens
Reply With Quote
Old 06-03-2014, 10:22 PM
Big Vic Big Vic is offline
Junior User
Join Date: Aug 2013
Posts: 85
Big Vic is starting off with a positive reputation.
Wind difference?
Trailer brake issue?
Less hills?
2014 F-250 XLT CC SB 6.2L
Reply With Quote
Old 06-04-2014, 09:24 AM
rvpuller's Avatar
rvpuller rvpuller is online now
Join Date: May 2004
Location: Home Base Nebraska
Posts: 2,615
rvpuller has a great reputation on FTE.rvpuller has a great reputation on FTE.rvpuller has a great reputation on FTE.rvpuller has a great reputation on FTE.rvpuller has a great reputation on FTE.
Yes the 6.2 does feel like it has split personality, after pulling with a V10 for 13 years and now with a 6.2 the 6.2 will adjust to the load faster than the V10 did. I find that if I'm cruising down the road pulling the trailer on flat roads it feels like it has adjusted itself back a bit but if you get on it the power comes back in short order.

When ever I state any kind of mpg that I am getting I try to make it over a long pull and if I can in both directions to compensate any road and wind conditions. With my Lariat and the way you can track your mpg with the A, B and instant setting you can track both directions individually and play with the instant setting to see how different speeds and and the way
you driving at the time affect the mileage.

Moderator 6.2 & V10 Forum
2013 F350 Lariat SC DRW 2WD 6.2 4.30 Gears Air Lifts 50 Aux tank
2003 HH Premier 35 FKTG
Retired 2000 F350 Lariat SC DRW V10 4.30 Gears BrakeSmart
Air Lifts 4X2
Reply With Quote
Old 06-04-2014, 09:24 AM

Similar Threads
Thread Thread Starter Forum Replies Last Post
climbing bridge and AC goes off ?? jp petracco Excursion - King of SUVs 13 06-11-2015 10:41 AM
Random Gas Mileage Info NJ-Keys Jupiter3102 6.2L V8 1 03-30-2015 05:31 PM
first road trip with e350 v10 bigbadassfords 1968-2013 Full Size Vans 1 10-01-2013 05:52 AM
FordmanNJ's Trip Report FordmanNJ Super Duty & Heavy Duty 9 08-15-2013 06:58 AM
SCT X3 towing experiences with V10 X_Hemi_Guy Excursion - King of SUVs 16 08-16-2010 01:55 AM

Go Back   Ford Truck Enthusiasts Forums > Performance, Engines & Troubleshooting > 6.2L V8

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

All times are GMT -5. The time now is 01:46 PM.


Powered by vBulletin® Version 3.8.7 AC2
Copyright ©2000 - 2015, Jelsoft Enterprises Ltd.
Advertising - Terms of Use - Privacy Statement - Terms of Service - 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