The octane rating of gasoline indicates how much a fuel can be compressed before it ignites. When gas ignites due to compression, knocking occurs within the engine. Check out this HowStuffWorks podcast to learn more about octane and engines.
Welcome to the daily audio workout for your head. Every day we have two games for you, each with three rounds which get progressively harder. To enjoy the full experience avoid distractions whilst you listen.
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