Thread: 93 Octane?
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Old 03-07-2012, 12:03 AM   #4
devinclfalcons
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Quote:
Originally Posted by ayau View Post
91 would be the lowest i'd go. i believe 91 is the lowest 'premium' in the US.

you could fill it with 87 and the car would still drive. you just risk the engine detonating.

http://en.wikipedia.org/wiki/Engine_knocking
What about 89 octane?
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