12-04-2013, 09:07 AM
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#1 (permalink)
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Premium Member
Join Date: Nov 2010
Location: South Arkansas
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Drives: 2014 Challenger
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Quote:
Originally Posted by Gene's Z
Does anyone use 87 octane fuel on a regular basis?
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Nobody that I know of. I got in a bind and put just enough low octane in the tank to get me to a station with ethyl.
Quote:
Originally Posted by Gene's Z
I tried one tank and didn't notice any knocking or any other ill effects but I hesitate do use it regularly. Any thoughts would be appreciated
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You may not have heard anything but, if you were pushing the engine very hard, it was there. The ECU can adjust to minimize knock but that decreases power. Try your test on a hot Summer day and you may be able to hear the knock.
Edit: To answer the question in your title: Yes. 89-91 octane is required for proper operation.
Last edited by SouthArk370Z; 12-04-2013 at 09:10 AM.
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