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Old 05-06-2010, 04:23 AM   #14
Sterling


 
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Drives: 2010 Camaro 1LT/RS M6
Join Date: Nov 2007
Location: Fairhaven, MA
Posts: 5,885
It won't hurt it any to use regular ol' 87... but I feel a difference when I put in 93. It has a little more get up and go in the lower RPM range. If you are shifting below 2000RPM you may notice it too. I haven't tried using 89 or 91 yet so I can't comment on that.
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