Natural Gas proves to be an ideal fuel source for numerous reasons including safety. It is lighter than air and it will rise and quickly dissipates in the atmosphere. Both CNG and LPG are natural gas; however they differ from each other in their properties.
The comparison between the CNG and LPG can be done as follows:
(1) CNG is compressed Natural Gas that is economical, clean burning, domestically available alternative fuel source for vehicles. While liquefied petroleum gas is a hydrocarbon fuel that is lighter than petroleum and can also be used as an automotive fuel.
(2) CNG will require higher initial investment while the LPG needed lower initial investment.
(3) CNG comes with lower running costs while LPG needs higher running costs.
(4) CNG offers lesser power delivery in comparison to increased power delivery in case of LPG
(5) With CNG, there are fewer requirements of tune ups, while in case of LPG more refined tune ups are required.
(6) CNG is stored in the bulkier and heavier storage tanks while LPG is stored in a smaller and tighter storage tanks.
(7) CNG is available at only limited outlets while LPG is available at most of the places
(8) CNG is a clean fuel with no carbon deposits while LPG is also delivering cleaner emissions.
(9) CNG is very safe fuel that is lighter and possesses higher ignition camp while LPG is heavier with lower ignition temperature.
(10) CNG is widely popular with commercial vehicles, taxis and autorickshaws while LPG is famous among private vehicles like cars.
Examples of Cars with CNG options are Chevrolet Optra, the Mitsubishi Lancer, Tata Indica and Indigo, Marina, Ford India and others.
Examples of Cars with LPG options include Suzuki Wagon R Duo and Omni, Tata hatchback and estate and others.