CNNMoney Debunks Gas Saving Myths

Posted by DJ at 5/17/2008 7:32 AM and is filed under Reduce Reuse Recycle
Accirding to CNNMoney, these 6 gas saving tips are just myths— and they've got documentation.

 

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  • 5/20/2008 9:08 AM j.william wrote:
    Actually, they admit that pumping up your tires will help, but would be unsafe if you over-inflate them.

    Secondly, they state that "Even cars for which premium is recommended won't suffer with regular fuel." This is patently untrue. Higher octane fuel allows for higher compression ratios, which results in greater fuel efficiency. It's just physics at that point.

    Sigh. That's what we get when we trust CNN-Money with vehicle maintenance.
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    1. 5/20/2008 10:56 AM DJ wrote:
      There are studies that show overinflated tires save fuel for semi trucks-- but Popular Mechanics tested the theory on passenger vehicles and found the effect of overinflating tires on gas mileage to be insignificant.  (See the links at http://asymptoticlife.com/2008/05/12/tire-pressure-being-lazy-costs-money.aspx.)  Add to this the potential loss if an overinflated tire blows, or if decreased handling causes an accident, and overinflation doesn't add up to a sound practice.
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