Is every one using 91 octan fuel

Originally Posted by ChrisSlicks You can get a slight benefit from the higher octanes as the ECU continues to advance timing until it detects knock, the difference is slight however.

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Is every one using 91 octan fuel

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11-24-2010, 08:58 PM

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ImportConvert

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Quote:

Originally Posted by ChrisSlicks

You can get a slight benefit from the higher octanes as the ECU continues to advance timing until it detects knock, the difference is slight however.

Really? I have NEVER heard of a vehicle that does this. There are set values in the PCM that it will advance to, and that's it--in every car I am aware--except the Z?

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