Ford Mustang Forum banner

2011 v6 octane

  1. 2011 - 2014 V6 Mustang Tech
    In the owners manual I believe it says that this new engine tunes itself if I were to put in a higher octane than 87. Is this true??? Will I also be able to go back to 87 if I switch to 93 octane for a fill up? Can this do any harm to my engine or future performance?