engine knocking at high rpm
Any clues on this? I'm using presumably 91 octane gas, all stock except K&N filter and plugs (platinum ones, but it happened with the originals too). My car currently has 25k,and is really babied. Wynn's octane booster can work?
Thanks for any reply
P.S. I live overseas, and my MAC catback has not arrived yet...
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95 5sp GT, black with gray leather, 17 in wheels,
Mach 460, K&N filters; studying mods, headers, off-road, catbacks and gears.
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