Chevrolet's expanded availability of bi-fuel versions of the new 2015 Silverado 2500HD and 3500HD trucks give customers and fleet managers more choices for cleaner-burning compressed natural gas-powered models and savings at the pump. Facebook : https://www.facebook.com/autoworldshow Twitter : https://twitter.com/VentunoAutoWrld Youtube : https://www.youtube.com/user/VentunoAutoWorld A Ventuno Production : www.ventunotech.com