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Discussion Starter · #1 ·
I think this has been addressed somewhere before but I can't find it. What is the recommended octane rating for the GTO? For some reason I think my friends ws6 recommended 92, but since I moved to california the highest I can find at the gas stations is 91.
 

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Discussion Starter · #4 ·
I've looked at every different station in SoCal and 91 is the highest. When I lived in Ohio and Alabama I could get up to 93 (or even turbo blue racing gas).
 
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