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Old 06-24-2013, 02:03 PM
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edbiology edbiology is offline
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Location: San Diego, CA, USA, Earth.
Join Date: Oct 2012
Posts: 241
Mein Auto: 2013 X3 28i
Originally Posted by Jimsan View Post
My door says 89 octane minimum for my 2014. So if I go to a higher octane will I notice a markedly higher performance? How do I notice it?
you will not notice anything other than placebo effect.
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