The Sierra Club, raising the ante in the political fight over automotive fuel economy, said it is rolling out a three-year campaign against the Big Three U.S. automakers to pressure them to build cars and trucks that go farther on a gallon of gas, according to the Wall Street Journal. The national environmental group, based in San Francisco, said its executive director and other officials will be in Detroit June 12 to announce a push to get General Motors Corp., Ford Motor Co. and DaimlerChrysler AG "to give American consumers the choice to buy more fuel-efficient vehicles." The move comes after the Sierra Club and other environmental groups failed earlier this year to persuade Congress to significantly increase the federal government's auto-mileage requirement, known as the Corporate Average Fuel Economy, or CAFE, standard.