DETROIT – Production of the 2013 Chevrolet Silverado HD and GMC Sierra 2500 HD bi-fuel pickup trucks is underway in Fort Wayne, Ind. The pickups are available for order by fleet and retail customers through Chevrolet and GMC dealers.

The Silverado HD and Sierra 2500 HD Vortec 6.0L V8 engine runs on gasoline or compressed natural gas (CNG) and seamlessly switches between the two fuels without affecting performance, according to the automaker. The CNG and gasoline tanks have a combined range of 650 miles.

You can see pickup trucks in the video below.

“Customers are choosing our bi-fuel trucks because they provide the same high level of GM truck performance and versatility but can also help businesses control their fuel costs and reduce their carbon footprint,” said Ed Peper, General Motors U.S. vice president of Fleet and Commercial Sales.

The Type-3 single-tank CNG system in the Silverado HD and Sierra 2500 HD is designed to retain more bed space than any competing bi-fuel truck from an Original Equipment Manufacturer. The pickups are available in standard and long-box and two-or-four wheel drive in the extended cab models.

The bi-fuel pickups are ordered from the factory, sent to the Tier One supplier, IMPCO, for installation of the CNG bi-fuel delivery and storage system, and then delivered by GM transportation to the dealer or to an upfitter for customer-ordered modifications.

The bi-fuel option is priced at $11,000 above the suggested retail price of the base vehicle. The entire gaseous fuel system meets GM’s strict quality, durability and safety testing. The trucks will be covered by GM’s three-year, 36,000-mile new-vehicle limited warranty and five-year, 100,000-mile limited powertrain warranty and vehicle emissions warranty. The vehicle meets all Environmental Protection Agency (EPA) and California Air Resources Board (CARB) emission certification requirements, according to the company.