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Old 12-24-2007, 08:43 AM
UncleBob UncleBob is offline
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Re: octaine question

most modern cars are very effective at sensing knocking and modifying the engine management to remove the knocking....but you will lose performance in the process, and probably mpg

If everything isn't working as it should, it might knock anyway and then things can go downhill quickly. But most setups are very smart and know when there's something wrong.

Most likely, there's no harm in running lower octane, but the recommendations from the manufacturer aren't just made up.
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