Go Back   Ford Truck Enthusiasts Forums > Performance, Engines & Troubleshooting > 6.2L V8
Sign in using an external account
Register Forgot Password?


6.2L V8 Discuss the 6.2L V8

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 08-15-2013, 08:40 AM
22rimfire 22rimfire is offline
Senior User
 
Join Date: May 2013
Posts: 109
22rimfire is starting off with a positive reputation.
Do you burn premium when towing?

This has probably been discussed before, but there might be some new owners that could chime in. I'll be towing the travel trailer for the first time this weekend (approx 7K lbs), and was wondering if the stock PCM recognizes and makes any adjustments for higher octane? Or is it just a waste of money? I'll expect to go through two tanks on this trip, and was thinking of burning reg on the first, and prem on the way home just to see if I noticed a diferance. No big hills on this trip, and we're heading to the coast so will be at or near sea level. Only 900 miles on truck so it's not even broke in yet. Anyway, your thoughts? Thanks, and I'll post up a trip report when I get back.
__________________
Carl
2013 F250 XLT 6.2 4X4 CC SB 3:73
Reply With Quote
  #2  
Old 08-15-2013, 08:47 AM
thomabb's Avatar
thomabb thomabb is offline
Posting Guru
 
Join Date: Apr 2010
Posts: 1,595
thomabb has a great reputation on FTE.thomabb has a great reputation on FTE.thomabb has a great reputation on FTE.thomabb has a great reputation on FTE.thomabb has a great reputation on FTE.
Running a gas with higher octane rating than what the engine is designed for does nothing. Higher octane rating only means the fuel is more resistant to compression-detonation.

Now, if the "premium" fuel also has no ethanol in it, that is a different story. Some stations in some states still sell gas without ethanol as a selection at the pump, but it is getting harder to find.
__________________

'02 F250 7.3 Auto Extended Cab Long Box 225+k Miles No Mods
Reply With Quote
  #3  
Old 08-15-2013, 08:57 AM
2000silverbullet's Avatar
2000silverbullet 2000silverbullet is offline
Moderator
 
Join Date: Aug 2004
Location: Pittsburgh
Posts: 5,314
2000silverbullet is a splendid one to behold2000silverbullet is a splendid one to behold2000silverbullet is a splendid one to behold2000silverbullet is a splendid one to behold2000silverbullet is a splendid one to behold2000silverbullet is a splendid one to behold2000silverbullet is a splendid one to behold
This is incorrect.

Running premium in the 6.2 will yield you more hp. This was confirmed by the 6.2 engineer back when he was around answering questions here on FTE.
__________________

Matt
2011 F350 - 6.2 CC, LB, 4.30s, Lariat Ultimate pkg, FX4, Amp steps, Lockpick, AC LC6i, JL HD900/5, JL 13TW5, JL C5-570's, Bilstein 7100 stabilizer, Rancho RS9000XL's, Leveled w/ 35" Toyo M/T's and 5 Star tuned
**Sold - 2000 F250 V10, 6.5" Pro Comp, 37" Toyo MT's
Reply With Quote
  #4  
Old 08-15-2013, 09:26 AM
thomabb's Avatar
thomabb thomabb is offline
Posting Guru
 
Join Date: Apr 2010
Posts: 1,595
thomabb has a great reputation on FTE.thomabb has a great reputation on FTE.thomabb has a great reputation on FTE.thomabb has a great reputation on FTE.thomabb has a great reputation on FTE.
Running higher octane rated fuel than what the engine is designed for alone can not improve HP - it defies physics.

Now, if the "knock sensor" is sensing pre-ignition and retards the ignition timing to protect the engine, HP is reduced. I did not see the q&a with the 6.2 engineer, but maybe that was what he was referring to?

What is the minimum octane rating required for your truck? Does the manual specify different fuels for different conditions?
__________________

'02 F250 7.3 Auto Extended Cab Long Box 225+k Miles No Mods
Reply With Quote
  #5  
Old 08-15-2013, 09:48 AM
thomabb's Avatar
thomabb thomabb is offline
Posting Guru
 
Join Date: Apr 2010
Posts: 1,595
thomabb has a great reputation on FTE.thomabb has a great reputation on FTE.thomabb has a great reputation on FTE.thomabb has a great reputation on FTE.thomabb has a great reputation on FTE.
"Octane is defined as a fuel's resistance to knocking. There is no benefit if the octane is higher than what the engine needs. Engine knock occurs when fuel in a combustion chamber ignites before it should. This disrupts the engine's operation. But electronic knock sensors are now common and have nearly eliminated engine disruption." - California Energy Commission Consumer Energy Center

All the research I read over the years on this subject reads almost exactly as this quote summarizes.

I will also throw out there that there is no tangible detriment to running higher octane fuel, other than to your wallet. So I can see why people choose to pay a little extra for the peace of mind.
__________________

'02 F250 7.3 Auto Extended Cab Long Box 225+k Miles No Mods
Reply With Quote
  #6  
Old 08-15-2013, 10:01 AM
thomabb's Avatar
thomabb thomabb is offline
Posting Guru
 
Join Date: Apr 2010
Posts: 1,595
thomabb has a great reputation on FTE.thomabb has a great reputation on FTE.thomabb has a great reputation on FTE.thomabb has a great reputation on FTE.thomabb has a great reputation on FTE.
What’s the difference between premium-grade and regular gasoline? • Ask an Engineer at MIT Engineering

Here's an article from MIT on the subject...
__________________

'02 F250 7.3 Auto Extended Cab Long Box 225+k Miles No Mods
Reply With Quote
  #7  
Old 08-15-2013, 10:10 AM
2000silverbullet's Avatar
2000silverbullet 2000silverbullet is offline
Moderator
 
Join Date: Aug 2004
Location: Pittsburgh
Posts: 5,314
2000silverbullet is a splendid one to behold2000silverbullet is a splendid one to behold2000silverbullet is a splendid one to behold2000silverbullet is a splendid one to behold2000silverbullet is a splendid one to behold2000silverbullet is a splendid one to behold2000silverbullet is a splendid one to behold
Here....

http://www.ford-trucks.com/forums/92...ml#post8833938
__________________

Matt
2011 F350 - 6.2 CC, LB, 4.30s, Lariat Ultimate pkg, FX4, Amp steps, Lockpick, AC LC6i, JL HD900/5, JL 13TW5, JL C5-570's, Bilstein 7100 stabilizer, Rancho RS9000XL's, Leveled w/ 35" Toyo M/T's and 5 Star tuned
**Sold - 2000 F250 V10, 6.5" Pro Comp, 37" Toyo MT's
Reply With Quote
  #8  
Old 08-15-2013, 11:03 AM
thomabb's Avatar
thomabb thomabb is offline
Posting Guru
 
Join Date: Apr 2010
Posts: 1,595
thomabb has a great reputation on FTE.thomabb has a great reputation on FTE.thomabb has a great reputation on FTE.thomabb has a great reputation on FTE.thomabb has a great reputation on FTE.
Thanks for that link. So the octane rating recommendation for these motors is purposely understated so the knock sensor controls engine timing more frequently? I did not know manufacturers were doing this.

So does your manual suggest different fuels for different conditions? My newest gas motor is a '08, just curious.
__________________

'02 F250 7.3 Auto Extended Cab Long Box 225+k Miles No Mods
Reply With Quote
  #9  
Old 08-15-2013, 12:01 PM
22rimfire 22rimfire is offline
Senior User
 
Join Date: May 2013
Posts: 109
22rimfire is starting off with a positive reputation.
Thanks for the replies guys. So the Ford engineer says 10 HP gain. While that's nice, I'm not sure it's worth the extra .30 cents a gallon I have to pay around here for 91. I think I'll stick to the reg this weekend and see how it goes. When I tow in the mountains it might be worth trying though.
__________________
Carl
2013 F250 XLT 6.2 4X4 CC SB 3:73
Reply With Quote
  #10  
Old 08-15-2013, 12:04 PM
22rimfire 22rimfire is offline
Senior User
 
Join Date: May 2013
Posts: 109
22rimfire is starting off with a positive reputation.
Quote:
Originally Posted by thomabb View Post
So does your manual suggest different fuels for different conditions? My newest gas motor is a '08, just curious.
I Don't remember seeing anything in mine (coulda missed it I'll check when I get home). I know the EcoBoost does.
__________________
Carl
2013 F250 XLT 6.2 4X4 CC SB 3:73
Reply With Quote
  #11  
Old 08-15-2013, 01:55 PM
rvpuller's Avatar
rvpuller rvpuller is offline
Moderator
 
Join Date: May 2004
Location: Home Base Nebraska
Posts: 2,381
rvpuller has a very good reputation on FTE.rvpuller has a very good reputation on FTE.rvpuller has a very good reputation on FTE.rvpuller has a very good reputation on FTE.
I run E10 87 or 89, in some of the midwest states E10 is reg 87 with 10% ethanol added to makes it 89. Runs just fine on the lower octane is was designed, I see no need to run the higher priced octane gas.

Denny
Reply With Quote
  #12  
Old 08-15-2013, 03:22 PM
2000silverbullet's Avatar
2000silverbullet 2000silverbullet is offline
Moderator
 
Join Date: Aug 2004
Location: Pittsburgh
Posts: 5,314
2000silverbullet is a splendid one to behold2000silverbullet is a splendid one to behold2000silverbullet is a splendid one to behold2000silverbullet is a splendid one to behold2000silverbullet is a splendid one to behold2000silverbullet is a splendid one to behold2000silverbullet is a splendid one to behold
Quote:
Originally Posted by thomabb View Post
Thanks for that link. So the octane rating recommendation for these motors is purposely understated so the knock sensor controls engine timing more frequently? I did not know manufacturers were doing this.

So does your manual suggest different fuels for different conditions? My newest gas motor is a '08, just curious.
I don't ever recall seeing anything where they recommended different grades of fuel for different conditions, but if you wanted a little extra hp, the option's there.

I'm running a 93 tune so I get more than a little extra hp. My tires are paying for it, already ready for another set before winter sets in.

__________________

Matt
2011 F350 - 6.2 CC, LB, 4.30s, Lariat Ultimate pkg, FX4, Amp steps, Lockpick, AC LC6i, JL HD900/5, JL 13TW5, JL C5-570's, Bilstein 7100 stabilizer, Rancho RS9000XL's, Leveled w/ 35" Toyo M/T's and 5 Star tuned
**Sold - 2000 F250 V10, 6.5" Pro Comp, 37" Toyo MT's
Reply With Quote
  #13  
Old 08-15-2013, 10:35 PM
BigMix's Avatar
BigMix BigMix is offline
Senior User
 
Join Date: Oct 2012
Location: Georgia
Posts: 117
BigMix is starting off with a positive reputation.
Try Premium Fuel without ethonal. I have tried premium but really couldn't see/feel the benefit. Of course I don't have a tune. Still trying to find a good station locally that has the straight stuff.
__________________
2013 F250 XL 6.2L CCLB 4X4 3.73 E-Lock 245/75/17s
2005 Gulf Stream Ameri-Lite 24RS
Reply With Quote
  #14  
Old 08-16-2013, 12:59 AM
6.2gasser's Avatar
6.2gasser 6.2gasser is offline
Senior User
 
Join Date: Jan 2013
Posts: 110
6.2gasser is starting off with a positive reputation.
I notice 1-2 mpg yield difference in the octanes. I put premium in frequently, less trips to the pump.
__________________

2012 F250 XLT,CC, FX4, 6.2L, 3.73
Reply With Quote
  #15  
Old 08-16-2013, 08:55 AM
22rimfire 22rimfire is offline
Senior User
 
Join Date: May 2013
Posts: 109
22rimfire is starting off with a positive reputation.
Went ahead and filled up last night with 87. Pretty much everything around me has "up to 10%" ethanol. It was $102.31 when it clicked off at 3.79 a gallon. I think I was wrong about needing two tanks for our trip. It's only around 95 miles to the state park, so might make it on one tank if we don't run around too much. Leaving in a few hours and I'll be off the grid till Sunday night. Later
__________________
Carl
2013 F250 XLT 6.2 4X4 CC SB 3:73
Reply With Quote
Old 08-16-2013, 08:55 AM
 
 
 
Reply

Similar Threads
Thread Thread Starter Forum Replies Last Post
Today will be my first fill up... sessland Excursion - King of SUVs 15 07-29-2014 05:56 PM
Update on the GT40 head swap on my 96 E150 baddad457 1968-2013 Full Size Vans 0 12-21-2013 08:48 PM
Weird smell automaticj5 Super Duty & Heavy Duty 10 10-25-2013 09:18 AM
Overdrive OFF light flashing question bc2sv 1999 - 2003 7.3L Power Stroke Diesel 21 03-05-2010 05:53 PM
Towed for the first time ... StorminTexan 3.8 & 4.2L V6 16 11-14-2004 05:57 PM


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 04:30 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