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Old 08-24-2016, 01:02 PM   #17
Dave R
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Quote:
Originally Posted by ursa minor View Post
I'm sure this mostly due to the EMM being able to advance the spark timing more with the higher octane fuel. When in doubt, check the owner's manual, if they recommend 87 there's no point in putting anything else in.
Yup, unless it's boosted, altering the ignition timing is all you can do to get more power with higher octane.
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