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The Hydro 4000: Save 60 percent on gas?
Does injecting hydrogen into your engine increase efficiency, or is this a myth that's already been busted?
Farhad Manjoo [2008-05-09]

  • Hmm.

    So, they claim to have somewhat more than doubled their mileage by going from 9.4 MPG to 23.2 MPG. According to Farhad, this is a boost of over 200%.

    What then would be an increase of 100% from 9.4 MPG? 9.4 MPG? How about a 50% increase? 4.7 MPG?

    This seems like a very peculiar way of stating percentages.

    If you double something, it has increased by 100%, and by 2X, two different ways of stating the same thing.

    -- Joe Bergeron
    [Read Joe Bergeron's other letters]
    Friday, May 9, 2008 01:36 PM
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