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What Ocatane?

Discussion in '2011-2014 V6 Mustang Tech' started by ccarranza, Oct 5, 2011.

  1. ccarranza

    ccarranza Member

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    Just purchased my new 2012 Kona blue V6 pony last tuesday and was just wondering what octane level I should be
    using. My first tank filled my the dealer was with 89 and got just over 400 miles with it, however I filled it with 91
    (California premium) and my mpgs are way less.
     
  2. mac_mogul

    mac_mogul Ned knows best.

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    You should be using 87 because that is what the factory tune is for.

    Highly recommend using 87 for the first several thousand miles until the engine is broken in...
     
  3. kgmx856

    kgmx856 Dirtbike Aficionado

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    I'd go with 116. Good stuff.





    Or 87 if you want to stay safe.
     
  4. ccarranza

    ccarranza Member

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    I think ill stay on the safe side, lol. Thanks for the info
    -Cory
     
  5. blazor

    blazor Active Member

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    +100, no need to run anything else unless you're tuned for a higher octane.
     
  6. blazor

    blazor Active Member

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    And congrats and the new car, that's a great little machine :thumbup:
     
  7. Adamd

    Adamd Sweet!

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    :lol:
     
  8. scottybaccus

    scottybaccus that guy

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    The new 3.7 and 5.0 have a new trick. The PCM will advance timing as far as the fuel allows (to a point, but well beyond the limited map of the previous strategies).

    This means you will see a noteable power increase on premium unleaded. In the Ford specifications for both cars they show HP ratings with 87 and 93 octane. I read an interview with one of the powertrain team and he detailed the differences and remarked that dyno testing with even higher octane fuels was showing surprising power gains as the new PCM adapted to the fuel. Folks will tell you the stock tune is only to 87 octane, but that isn't the case. Sure, there's more performance to be had from a tune optimized to the higher octane, but that doesn't mean you are wasting money with a tank of premium.
     
  9. mac_mogul

    mac_mogul Ned knows best.

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    You are wasting your money with a tank of premium.
     
  10. GDP

    GDP I'd pee in her butt!

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    If thats true I now want the new V6 even more lol. Thats a piece of engineering beauty right there man.
     
  11. Demetri

    Demetri New Member

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    Factory tune is the low octane, too high of an octane can foul out your plugs if you run it for long and the pcm is not tune for it. Higher octane burns slower than low that's why it's used in High compression or forced inducted applications. If you load an SCT 93 octane tune then you can run 91 if up north/93 if down south. Run regular until you tune or get tuned for higher.
     
  12. Codi_P

    Codi_P TGOD

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    Lol, sorry that 3 dollars is wasted.
     
  13. Justin251

    Justin251 hotpocketssssss

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    Its more than 3 dollars.
     
  14. Kuplex

    Kuplex Retired Admin

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    Adaptive knock spark control. It's not new technology by any means. The V8 Mustangs have had knock sensors for a long time, though I don't know if any previous years advanced timing as the sensors were primarily used to retard timing in the event of detonation to prevent damage. That being said, you can gain a couple ponies from using 91+ octane in the new Mustangs (Coyote's rated 412 is on premium, reduced by about ~10hp on 87), but it's still trivial in comparison to the gains you can get with a tune that takes full advantage of the increased octane.