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  • 2005 - 2014 S-197 Mustang -General/Talk-
  • 2005 - 2009 Specific Tech

When to change octane if changing tune?

  • Thread starter Thread starter ecko51
  • Start date Start date Jul 29, 2006
E

ecko51

New Member
May 1, 2005
27
0
0
Jul 29, 2006
#1
  • Jul 29, 2006
  • #1
What is the proper way to go up or down in octane as far as fueling and when to change the tune?


Thanks, Mike
 

bigcat

start with the upper hole, and if more traction is
May 1, 2005
3,015
1
79
7200 feet
Jul 29, 2006
#2
  • Jul 29, 2006
  • #2
you want the tank as low as possible before filling up and changing the tune.
 

Saleen-wana-be

New Member
May 4, 2006
51
0
0
Jul 29, 2006
#3
  • Jul 29, 2006
  • #3
yeah, fill up then tune, never tune then fill. Although if your going down from like 91 to 87 it wont really matter, but when going up, run it almost to E, fill up then tune.
 
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