Chrysler has delivered 242 new 2013 Ram 2500 compressed natural gas (CNG) pickup trucks to the state of Oklahoma.

The Ram 2500 CNG pickups will be used by the Oklahoma Department of Transportation (DOT) as service trucks on the state’s roads and highways.

The Ram 2500 is a bi-fuel vehicle that uses CNG as its primary fuel source and automatically switches to gasoline when the CNG tanks are emptied. The Ram 2500 CNG system was fully engineered and tested by Chrysler and assembled at the company’s Heavy Duty truck plant in Saltillo, Mexico.

Oklahoma Governor Mary Fallin is leading a bipartisan coalition of 22 states seeking to use more CNG vehicles in their state fleets.

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