When changing tunes - Mustang Evolution

Go Back   Mustang Evolution > 4 Cylinder | V6 | Classic Mustangs || Tech and Talk > 2011-2014 V6 Mustang



Reply
 
Thread Tools Search this Thread
Please support our sponsors and let them know you heard about them here!
Old 08-28-2014, 07:10 AM   #1
Registered Member
Regular
 
elkoritaNAY's Avatar
 
Join Date: Jun 2014
Location: Los Angeles
Region: California
Posts: 851
When changing tunes

How low in gas do u aim or reach for before uploading a higher grade gasoline tune? I understand that I can run 87 tune on 89 gas, but what about the opposite?


Sent from my iPhone using Mustang Evolution
elkoritaNAY is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 08-28-2014, 07:14 AM   #2
Registered Member
Regular
 
sguevara's Avatar
 
Join Date: May 2014
Posts: 203
Not a good idea. You'll get engine ping as the spark timing isn't set for the lower OCT. I barley know anything about anything but I'm pretty sure that's the jest of it!


Sent from my iPhone using Mustang Evolution
sguevara is offline   Reply With Quote
Old 08-28-2014, 07:15 AM   #3
Registered Member
Regular
 
elkoritaNAY's Avatar
 
Join Date: Jun 2014
Location: Los Angeles
Region: California
Posts: 851
No I know the opposite is bad. That's why I started with how much close to empty does one need to be prior to switching tunes?


Sent from my iPhone using Mustang Evolution
elkoritaNAY is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 08-28-2014, 07:19 AM   #4
Registered Member
Regular
 
sguevara's Avatar
 
Join Date: May 2014
Posts: 203
Oh sorry. I got you. If I'm going to a 93 tune with 87 in the tank I get as close to E as I can. I have changed tunes with just under a quarter of a tank though.


Sent from my iPhone using Mustang Evolution
sguevara is offline   Reply With Quote
Old 08-28-2014, 07:20 AM   #5
VIG
Registered Member
Regular
 
VIG's Avatar
 
Join Date: Jun 2013
Location: Wilmington
Region: Delaware
Posts: 1,238
You can run 89 fuel on the 87 tune but you cannot run 87 fuel on the 89 tune.

I run it down until the miles to empty indicator doesn't read anything. Then I put in about 5 gallons, run that down until the miles to empty reads nothing again then fill it all the way up.

This should be good enough.
__________________
IG: workshardplayshard
VIG is offline   Reply With Quote
Old 08-28-2014, 08:22 AM   #6
Site Sponsor
 
Join Date: May 2014
Location: Malvern, PA
Region: Pennsylvania
Posts: 2,510
OP,

Like VIG had said I do roughly the same (If I ever switch out of the Rcae tune) but I would run it down until empty, fill up and switch over! Let me know if you have any other questions or shoot us a call!

Quote:
Originally Posted by VIG View Post
You can run 89 fuel on the 87 tune but you cannot run 87 fuel on the 89 tune.

I run it down until the miles to empty indicator doesn't read anything. Then I put in about 5 gallons, run that down until the miles to empty reads nothing again then fill it all the way up.

This should be good enough.
__________________
Alex Lazarus | AmericanMuscle.com
Toll Free: 1-866-363-4591
Bama Hotline: 888.226.9764 | M-F 9AM-5:30PM EST
WIN A SUPERCHARGED MUSTANG & 2017 RAPTOR!
Free Same-Day Shipping!
AMAlexLazarus is offline   Reply With Quote
Old 08-31-2014, 09:15 AM   #7
Registered Member
Regular
 
ponie1992's Avatar
 
Join Date: Jul 2014
Location: Lexington
Region: South Carolina
Posts: 1,052
I'll run it down to E then fill up with higher octane and run that to E. Fill up again and change the tune.

Sent from my SCH-I545 using Mustang Evolution mobile app
__________________
Jeremy
2016 Ruby Red PP GT
ponie1992 is offline   Reply With Quote
Old 08-31-2014, 09:59 AM   #8
Registered Member
Regular
 
Steven3_7's Avatar
 
Join Date: Jul 2014
Location: Atlanta
Region: Georgia
Posts: 79
What is the need to fill up with higher octane run it down to E. Then fill up again and then load the tune?


2013 v6 Black Mustang,JLT CAI, Flowmaster 40 series mufflers
Steven3_7 is offline   Reply With Quote
Old 08-31-2014, 03:12 PM   #9
Registered Member

Regular
 
natestang07's Avatar
 
Join Date: Jun 2014
Location: Soap Lake
Region: Washington
Posts: 5,321
Quote:
Originally Posted by Steven3_7 View Post
What is the need to fill up with higher octane run it down to E. Then fill up again and then load the tune?


2013 v6 Black Mustang,JLT CAI, Flowmaster 40 series mufflers
That was it is more purely the higher octane. Not semi diluted 93 with 87 mixed in

05 Gt Premium Performance White, flowmaster outlaws
natestang07 is offline   Reply With Quote
Old 08-31-2014, 04:15 PM   #10
Registered Member
Regular
 
Steven3_7's Avatar
 
Join Date: Jul 2014
Location: Atlanta
Region: Georgia
Posts: 79
Ahhh I see. Thanks


2013 v6 Black Mustang,JLT CAI, Flowmaster 40 series mufflers
Steven3_7 is offline   Reply With Quote
Old 08-31-2014, 04:53 PM   #11
Registered Member
Regular
 
FastFord13's Avatar
 
Join Date: Apr 2013
Location: Montreal
Region: Canada
Posts: 4,258
I had 91 in my tank with about 1/8th of a tank left, my low fuel light was on. I then filled it with 93, but before I tuned to 93 I called Bama for their thoughts, and they said I'd be fine. Car ran great, didn't ping pulled hard.

2013 3.7 Manual Candy apple red metallic,
GT 500 stripes, painted side mirror covers, GT 500 spoiler, 2010 GT premium wheels with Pirelli P-zero tires, upper and lower front billet grille, Barton shifter bracket, Airaid Cold air intake, S.R lowering springs, J&M adjustable panhard bar, Boss 302 strut tower brace, 3.73 ford racing gears, Bama tuned, BBK shorty headers, Roush Axel backs.
FastFord13 is offline   Reply With Quote
Old 09-01-2014, 08:52 AM   #12
Registered Member
Regular
 
Siber Express's Avatar
 
Join Date: Jan 2013
Location: Clinton
Region: Tennessee
Posts: 1,100
Since I run a 91 tune on mine I just make sure I can put 13 gallons of 92 in, drive it home to get all the 87 out of the fuel line and then switch it. The octane averages out to over 91 and have never had a problem.
BTW Gasoline in my area (most areas) comes in by pipeline (1 Pipeline, not 2 or 3), so the only difference in brand or octane are the additives. So once they are mixed up you are good to go.
__________________
2013 V6 MCoA, Performance Package, Security Package, Comfort Package and Electronic Package.
Mods OEM Backup Camera, BBK Shorties, FRPP Cut and Clamp X-Pipe, Borla Touring A/B's, Airaid CAI, Axle Xchange 2 piece aluminum Driveshaft, Koni Sport Shocks and Struts, Vogtland V6 Leveling springs, Ford Racing 302s wheels wrapped with Continental 275/40 19's, JBL GTO 8628 6X8 in all 4 corners.
2013 F 150 FX2 With a 6.2 Boss
Siber Express is offline   Reply With Quote
Old 09-13-2014, 10:31 PM   #13
Registered Member
Regular
 
5pointYoBro's Avatar
 
Join Date: Jun 2014
Location: Nashville
Region: Tennessee
Posts: 730
If I go from 87 to 91. I understand running it as low as possible then refill with the higher octane. But when you say "refill" do i really need to refill to a full tank or half/quarter? I dont drive it much so it would take awhile to kill a full tank, and I am impatient...
__________________
2014 GT. Oxford White.
20" Velgen VMB5s on NT555s.
MBRP Race Series Catback Exhaust
Bama 93 Performance Tune
5pointYoBro is offline   Reply With Quote
Reply

Lower Navigation
Go Back   Mustang Evolution > 4 Cylinder | V6 | Classic Mustangs || Tech and Talk > 2011-2014 V6 Mustang

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 Off
Pingbacks are On
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Changing tunes too much? Stephen06v6 2005-2010 V6 Mustang 4 09-03-2013 04:33 PM
Custom Tunes vs Mail Order Tunes illestdomer2005 Pre-2005 V6 Mustang 13 08-14-2011 08:23 AM
Changing tunes Blackedout General Mustang Discussion 2 04-08-2011 07:02 PM
VMP Tunes the 07 Shelby GT500...505 RWHP justin00stang General Mustang Discussion 9 09-18-2006 11:03 PM

» Like Us On Facebook



03:27 PM


Powered by vBulletin® Version 3.8.8
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Content Relevant URLs by vBSEO 3.6.0

MustangEvolution.com is in no way associated with or endorsed by Ford Motor Company.