Wal-Mart is going to introduce four liquefied natural gas (LNG)-fueled Peterbilt 386 trucks ... above is one of Wal-Mart's hybrid trucks being used for other tests). The deployment will be ...

UPS will deploy the LNG-fueled trucks in the western U.S. later this ... number of long-haul routes in the West on which they're used. "UPS has shown environmental leadership in expanding its ...