Compressed natural gas CNG fuel is normally dispensed in 'equivalent gallons,' where one equivalent gallon is equal to 121.5 cubic feet of CNG. Therefore, the fuel economy values are shown in miles per gallon-equivalent. Annual fuel cost estimates are based on an average fuel price of $1.25 per gasoline equivalent gallon of CNG.

The driving range is shown in miles and represents the distance the vehicle can travel on a full tank (or tanks) of fuel during combined city and highway driving (55% city and 45% highway).

At the time of printing there were no data available for compressed natural gas vehicles. Please check the Fuel Economy Guide's web site (www.fueleconomy.gov) for updates.