[Eye of Unk]

First off I would not personally use a car, if my Silverado dually with its 8.1 liter engine could be a candidate for conversion I would have the tanks behind the cab in the bed.

I live in Alaska and our regular is already at $3.45 a gallon, diesel much higher. But our natural gas is relatively affordable.

sadly certain politicians axed a major natural gas pipeline that would have greatly benefited many with even more affordable natural gas.

Highway taxation is what will stop the country.

[brityank]

Highway taxation is what will stop the country.

Well, the EPA has already shut down most technology projects on the basis of GreeNazi lies, and as this clip from your Wiki link above shows, they may have to permit it, but they'll make it painful"

Congress has encouraged conversion of cars to CNG with a tax credits of up to 50% of the auto conversion cost and the CNG home filling station cost. However, while CNG is much cleaner fuel, the conversion requires a type certificate from the EPA. Meeting the requirements of a type certificate can cost up to $50,000.

It also noticed the cost relative to gasoline was less than half - $1.50gge. (gasoline gallon equivalent)