Least Polluting Fuel for a Vehicle

Least Polluting Fuel for a Vehicle Is ____________ .

Answer: Compressed Natural Gas(CNG)

Explanation: Important things to know about CNG.

Origin

Compressed natural gas (CNG) is a gasoline-based fuel gas mostly made up of methane (CH4) that has been compressed to less than 1% of its original volume at regular atmospheric pressure. It’s kept and delivered in rigid containers with a pressure of 20–25 MPa (2,900–3,600 psi), commonly in cylindrical or spherical shapes, at a pressure of 20–25 MPa (2,900–3,600 psi).

Uses

• CNG is used in modified traditional petrol/internal combustion engine cars or vehicles specifically designed for CNG use: either alone (dedicated), with a segregated liquid fuel system to enhance range (dual fuel), or in combination with another fuel (combined) (bi-fuel).
• It can be substituted for gasoline, diesel fuel, and liquefied petroleum gas (LPG).

CNG vs. Other Fuels

When compared to the other fuels, CNG creates fewer harmful gases. Natural gas is less dangerous than other fuels in the event of a leak since it is lighter than air and disperses quickly when discharged. It’s possible to use biomethane, which is refined biogas from anaerobic digestion or landfills.