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2004 Infiniti I35 Question: Low to mid acceleration, I hear pinging.I use high octane 91 Shell gas.



Graeme, Colorado Springs, CO, May 16, 2012, 12:20

I live at 7000 feet. What should I do? I should be able to use 87 octane at this altitude, but that makes it worse.
I have a 2001 Infiniti I30 T and it never has that problem and I use 87 Octane in it.

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