Quote:
Originally posted by 2ndGenTeg
Why would you WANT to run a high octane? You should be asking what is the LOWEST octane rating you can run is.
Octane rating DOES NOT equal power. Cars with aggressive compression and/or boost just need it to prevent detonation. Your Prelude falls into neither of these categories.
You'll actually get MORE performance out of the lowest octane rating you can run (since it is less resistant to ignition). So save some money, make some power, and just run good ol' regular 87.
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and it all depends on the ignition timing. the more advanced it gets the higher octane it requires. for some reason i noticed that manufacurers reccomend the 86 and higer for cr of 8.5:1 and 93 octane for 9.5:1 and higher. also the higher the octane gets the hotter the temps inside the cylinders will be