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Low operational cost:
The operational cost of vehicles running on CNG, as compared to those running on other fuels, is significantly low. At the prevailing price of fuel in Delhi, Operational cost of CNG vehicles is 66% lower than petrol and 28% lower than diesel.

Increased life of oils:
Another practical advantage observed is the increased life of lubricating oils, as CNG does not contaminate and dilute the crankcase oil.

Mixes evenly in air:
Being a gaseous fuel CNG mixes in the air easily and evenly.

Economical:
a) Easy on the pocket.
b) CNG delivers high performance at low cost, as it gives your vehicle a better mileage.
c)CNG does not contaminate or dilute crank case oil, giving engine an extended life.

Eco friendly:
a) The use of CNG significantly reduces harmful vehicular exhaust gas emissions like carbon dioxide, carbon monoxide and other suspended particles.
b) It protects the environment by reducing the effects of global warming.
c) Non –toxic, non-corrosive, non-carcinogenic and hence improves public health.

Safe &Reliable:
a) CNG is lighter than air and hence disperses quickly without any dangerous accumulation.
b) CNG has a narrow flammability range making it much safer than other fuels.
c) CNG has a higher ignition temperature than other fuels, reducing chances of accidental and spontaneous ignition.

Broadly speaking, most electric cars sold today tend to produce significantly fewer planet-warming emissions than most cars fueled with gasoline. But a lot depends on how much coal is being burned to charge up those plug-in vehicles. And electric grids still need to get much, much cleaner before electric vehicles are truly emissions free.

One way to compare the climate impacts of different vehicle models is with this interactive online tool by researchers at the Massachusetts Institute of Technology, who tried to incorporate all the relevant factors: the emissions involved in manufacturing the cars and in producing gasoline and diesel fuel, how much gasoline conventional cars burn, and where the electricity to charge electric vehicles comes from.

If you assume electric vehicles are drawing their power from the average grid in the United States, which typically includes a mix of fossil fuel and renewable power plants, then they’re almost always much greener than conventional cars. Even though electric vehicles are more emissions-intensive to make because of their batteries, their electric motors are more efficient than traditional internal combustion engines that burn fossil fuels.

Natural gas vehicles (NGVs) can offer an array of economic and environmental benefits to California residents. These may include the economic benefits of a low-cost, domestic fuel, developing a market for green jobs, improving regional air quality, reducing greenhouse gas emissions, reducing our dependence on petroleum and providing a pathway to a hydrogen economy.

Environmental Benefits

Natural gas vehicles can have an immediate and positive impact on the issues of air quality, U.S. energy security and public health. Here are some key benefits of using natural gas as a transportation fuel.

NGVs are Clean

NGVs are some of the cleanest vehicles in commercial production today, and produce only 5-10 percent of the emissions allowable, even by today's most stringent standards. NGVs produce 20-30 percent less greenhouse gases than gasoline- or diesel-powered vehicles.

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