Style & Culture

Hypermiler

Tue Mar 12 2013 15:55:30 GMT+0000 (Coordinated Universal Time)

The ALL-NEW SILICA COMPOUND in the Yokohama AVID ENVigor delivers ultra-low rolling resistance for increased fuel efficiency, without sacrificing treadlife, comfort or grip on dry, wet or snow-covered roads.

Wed Mar 13 2013 19:11:47 GMT+0000 (Coordinated Universal Time)

How can you simultaneously decrease rolling resistance without sacrificing grip? Aren't these the same thing?