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GMC Sierra 2500

GM Expands Silverado/Sierra Bi-Fuel CNG Availability

The bi-fuel system automatically switches to gasoline when the CNG tank is empty, or drivers can manually switch between fuel sources while driving. The 6.0L V-8 engine features hardened valves and intake/exhaust valve seats.

Silverado HD Models Now Available as CNG-Capable

Chevrolet has announced that its MY-2015 HD models will be available with a CNG-capable, bi-fuel 6.0L engine. The move gives fleet managers and consumers more options when choosing a 2500HD or 3500HD model, according to the automaker.