Compressed Natural Gas (CNG)


Compressed Natural Gas (CNG)

Compressed Natural Gas (CNG) is Clean Energy for Vehicles.

The use of natural gas in the transport sector has contributed to a great extent in containing the pollution due to vehicular exhaust emissions. CNG is an eco friendly green fuel and emits less pollutants.

Apart from this, natural gas as CNG has been able to replace high priced hydrocarbon commodity like petrol and diesel. It is an economical than other conventional fuels. It has no evaporation leaks and spills of fuel, both during refueling and feeding of car.

Compressed Natural Gas (CNG) is natural gas compressed to a pressure of 200-250 Kg/cm² (g) (due to its low density) to enhance the vehicle on-board storage capacity.

GAIL and its CGD Joint Venture Companies / Subsidiaries are operating CNG stations in states of Delhi, Maharastra, Uttar Pradesh, Gujarat, Andhra Pradesh, Telangana, Tripura, Madhya Pradesh, Karnataka, Haryana, Uttarkhand, Odisha, Goa, Bihar, Jharkhand and Rajasthan with around 1384 CNG stations catering to approximately 23.68 lakhs CNG vehicles.


  • Very low level of polluting / greenhouse gas emissions
  • Molecular structure compactness prevents the reactive processes which lead to the formation of Ozone (O3) in the Troposphere.


  • Cheaper than conventional fuel


  • Lighter than air – in case of leak no dangerous puddles
  • Unlikely to ignite due to high ignition temperature or narrow range of ignition
  • CNG cylinders structurally most sound and have passed every severe tests


  • Very high antiknock power allows greater performance compared to petrol one.
  • Does not require refining plant or additive adding.
  • No evaporation leaks and spills of fuel, both during refueling and feeding of the car.
  • Combustion produces very low quantity of carbon deposits.
Last Updated: 30th May, 2017

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