As gas prices skyrocket, Americans are increasingly studying the techniques of a fringe group of drivers who work to maximize their fuel efficiency -- so-called "hypermilers." Now, a major automotive group has warned motorists against the trend. The Orlando Sentinel reports, "The AAA auto club issued a warning this morning that some gas-savings techniques being popularized through a 'hypermiling' fad can be dangerous and should be avoided." While AAA says ... Read more of this story at U.S. News Rankings and Reviews ...