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Old 03-26-2003, 02:32 PM   #13
somebody else
Scooby Specialist
Member#: 21618
Join Date: Jul 2002
Chapter/Region: SCIC
Location: southern California
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Add a couple gallons of 100 octane to a tank of California piss (91 octane) and good things happen. There are a couple stations close by my house that sell 100 octane unleaded at the pump @ $4.00 or more / gallon. The Union 76 site has mixing charts that show the effective octane from mixing 91 and 100 together.

This works on the WRX and I bet it works on the STi too.

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