PostHeaderIcon Natural Gas Vehicle Emissions

Natural gas burns cleaner than conventional gasoline or diesel due to its lower carbon content. When used as a vehicle fuel, it can offer life cycle greenhouse gas (GHG) emissions benefits over conventional fuels, depending on vehicle type, drive cycle, and engine calibration. In addition, using natural gas may reduce some types of tailpipe emissions.

Natural gas is increasingly being used to replace gasoline in smaller applications, such as forklifts and commercial lawn equipment. Because natural gas is a low-carbon, clean-burning fuel, a switch to natural gas in these applications can result in substantial reductions of hydrocarbon, carbon monoxide, oxides of nitrogen, and greenhouse gas emissions. In addition, natural gas is nontoxic, so it isn’t harmful to soil or water.

Life Cycle Emissions and Petroleum Use

In 2007, a study for the California Energy Commission (CEC) found that both CNG and LNG reduce life cycle GHG emissions in both light- and heavy-duty vehicles compared to their gasoline and diesel counterparts. Again, this is primarily due to the low petroleum usage in the production phase and the low-carbon intensity of the fuel during use.

Converted Vehicles

Overall, CNG and LNG are both clean-burning fuels and perform well against current vehicle emissions standards. Therefore Converting conventional vehicles to run on natural gas is a good option for incorporating alternative fuels into light- and heavy-duty fleet operations.

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