Big trucking companies shifting to natural gas across the U. aspwv2013-11-07T00:00:00-05:00November 7th, 2013|Twitter| Big trucking companies shifting to natural gas across the U.S. http://t.co/zbupGjVrit via @AutoblogGreen #CNG Share This Story, Choose Your Platform! FacebookTwitterRedditLinkedInWhatsAppTumblrPinterestVkEmail