Ford Focus Forum, Ford Focus ST Forum, Ford Focus RS Forum - View Single Post - anyone using premium gas ?
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Old 05-22-2012, 07:37 PM   #126
Focus Jr. Enthusiast
Join Date: May 2012
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Location: Louisville, KY
What I Drive: 2001 white Focus se

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If the engine is not knocking or pinging, there is no performance to be gained by octane alone.
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