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now I am not sure if it's knocking or pinging. It's loud and only happen when clambing up the hills. If I don't clamb hills, I would never hear it ever.
I will try 91 octan to see what happen. Honestly, I always thought all japanese engines are running 87 octan.
Thanks.
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Fat butt 911, 1987
Last edited by rnln; 06-15-2009 at 03:34 PM..
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