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Old 04-24-2009, 06:37 AM   #14
cas951
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Join Date: Apr 2007
Location: Bay Area
Posts: 524
Quote:
Originally Posted by Adam
Back to the original question, as most people have already said, if you only have access to 91 then mixing in some higher oct gas or octane booster may have some benefit, but going past 93 is just going to drain your wallet unless you have a custom tune, forced induction, or raised the compression.
Yes this is true. I think our ECU can compensate till 95-96 Octane.

Here'a a mixture of 91 Octane and 100 Octane to get your desired octane mixture that I received from Unocal several years ago.
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2008 Boxster S PDE2
02 Boxster S Blk on Blk(Stock for the Wife)
88 turbo S (My Toy) slightly modified
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