August was the biggest month ever for U.S. gasoline consumption. Americans used a staggering 9.7 million barrels per day. That’s more than a gallon per day for every U.S. man, woman and child. The new peak comes as a surprise to many. In 2012, energy expert Daniel Yergin said, “The U.S. has already reached what we can call`peak demand.” Many others agreed. The U.S. Department …