4 ms·

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• tadfisher 11y ago
  Note to readers: 14.7 is the stoichiometric mixture for pure octane (C8H18). The stoichiometric AFR for pump gasoline is a bit lower, but the same principles apply.
  • bagels 11y ago
    How much lower? Not that I don't believe you, but I've not heard this before.
    • tadfisher 11y ago
      Pump gas in the US typically contains 10-15% ethanol, dropping stoich as low as 13.79:1. Stoich for E85 is 9.75:1.