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      09-20-2012, 02:05 PM   #6
geordie
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Drives: 2011 X3 35i
Join Date: Jun 2011
Location: Victoria, BC, Canada

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In Canada, the 35i says use 91 octane (which is considered "premium" gas here). 87 is considered "regular".

So 93 octane that I'm saying helps with the lurching would be above the spec of 91 BMW says the turbo needs.
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