Bi-fuel option to priced at $11,000 on GM pickups
Price tags have just been placed on General Motor’s bi-fuel options for its GMC Sierra HD and Chevrolet Silverado 2500 HD models, and the added mileage is going to cost big bucks up front. The bi-fuel option allows the vehicle to switch between CNG (compressed natural gas) and petrol fuels, and to acquire the capability [...]

