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GM Expands Silverado/Sierra Bi-Fuel CNG Availability

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.

September 23, 2014