GM introduces CNG bi-fuel Chevrolet Silverado and GMC Sierra pickups
Green Car Congress
MARCH 5, 2012
V8 engine that seamlessly transitions between CNG and gasoline fuel systems. With both CNG and gasoline tanks full, the trucks offer a range of more than 650 miles. The Vortec engine features hardened exhaust valves and hardened intake and exhaust valve seats. The vehicles feature a CNG-capable Vortec 6.0L
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