At the Exxon/Pep Boys station on the southeast corner of the Route 202/1 intersection, the sign gives prices for gasoline, diesel and CNG. What is CNG, I asked my travel companion (his breadth of knowledge continually delights me). Compressed natural gas, he explained; it's a type of "green" fuel used mostly by buses and fleet vehicles.
Sure enough, later that day in Voorhees, N.J., we spotted two municipal trash trucks sporting signs saying they used CNG.
The price given at the Exxon for CNG was 0.00, which I took to mean that either they didn't have any on hand or it was free.
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