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How accurate is computer MPG reading?

sixsr Aug 18, 2008

  1. sixsr

    sixsr New Member

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    I'm just wondering how accurate people find the MPG reading on their computer?
     
  2. Macduff

    Macduff Member

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    About 5-10% over optimistic.

    Can't understand why it should be considering how accurately the fuel is supposed to be delivered to the engine.
     

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