Gas-saving tires roll up in popularity
 

The rubber is meeting the road in automakers' quest for a quick gas mileage boost.

Automakers have developed a budding affection for "low-rolling-resistance" tires to squeeze a few extra miles per gallon from every model.
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*Source: USA Today (http://www.usatoday.com/money/autos/...N.htm?csp=34)*

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