GM warrants and validates the fuel systems on all of its CNG trucks, vans and the upcoming bi-fuel Chevrolet Impala sedan through its five-year/100,000-mile – whichever comes first ...

Always a venue for the debut of new trucks, configurations and technologies, Chevrolet has chosen the Chicago Auto Show as the place to roll out its 2015 Silverado 2500 HD CNG work truck.