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CNG Compressed Natural Gas

Compressed natural gas, or CNG, is natural gas under pressure which remains clear, odourless, and non-corrosive – and can be used as a cheaper, greener, and more efficient alternative to the traditional petrol and diesel fuels for vehicles.

CNG is comprised mostly of methane gas which, like gasoline, produces engine power when mixed with air and fed into your engine's combustion chamber. CNG is compressed so that enough fuel can be stored in your vehicle to extend driving range, much like the gasoline tank in vehicles.

Diesel and gasoline vehicles will need to be converted to use CNG fuel.

A typical passenger car converted to use CNG or an OEM CNG vehicle normally have a capacity of approximately 15 litres gasoline equivalent of CNG, which can take you depending on your driving habits up to 200km. At today’s prices 15 litres of CNG will cost 15 dollars. Its important to note, one litre gasoline equivalent of CNG will take you the same distance as one litre of gasoline.

How does cng work?

When CNG reaches the combustion chamber, it mixes with air, is ignited by a spark and the energy from the explosion moves the vehicle.

Although vehicles can use natural gas as either a liquid or a gas, most vehicles use the gaseous form compressed to 3,000 psi.

Why is cng better than gasoline?

CNG is one of the most viable alternatives to traditional liquid fuels for vehicles here in Trinidad and Tobago.

CNG is cheaper - CNG is almost one third the price of super gasoline, resulting in substantial savings in fuel costs.

CNG reduces maintenance cost - CNG contains no additives and burns cleanly leaving no by-products of combustion to contaminate your spark plugs and engine oil. The combustion chamber parts function at peak output for longer periods before requiring service. The engine oil also remains clean which minimises engine wear and requires less frequent changes.

CNG is more environment friendly - CNG engines run more quietly due to the higher octane rating of CNG over gasoline and they produce less exhaust emissions. Harmful emissions such as carbon monoxide (CO), carbon dioxide (CO2 and nitrous oxide (N2O) can be reduced by as much as 95% when compared to gasoline powered vehicles.

CNG is safer - CNG components are designed and made to international standards and are monitored to ensure safe operation. CNG fuel systems are also sealed, which prevents any spill or evaporation losses.


Jairo Martinez

excellent site, very good information


Amit singh

great information, thanks for sharing this, keep it up bro








nice information share to us Good keep it up


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