Pickup trucks are always popular in the United States and therefore Chevrolet and GMC are now providing their heavy duty pickup trucks with bi-fuel option that will allow consumers to have some options on their side. The company has now announced that they will come up with the bi-fuel models but the price for that will be $11,000 more than suggested base model price that is available in the market. Chevrolet and GMC have now announced that both fleet and retail customers can now place orders for the all new 2013 Chevrolet Silverado HD and GMC Sierra 2500 HD from April 19, 2012.