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  Natural gas is the cleanest burning alternative transportation fuel available today that can economically power light-duty, medium-duty, and heavy-duty vehicle applications as well as many non-road applications, such as rail and marine vehicles. Natural gas is a proven alternative fuel that significantly improves local air quality and reduces greenhouse gases (GHG).

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Natural Gas as a Transportation Fuel is Growing

 More than 35 airports in the U.S. have natural gas vehicles in their own fleets or have policies that encourage use by private fleets operating on premises, making this sector the third largest in vehicular natural gas use.

A few quick facts:

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Methane molecule

  • Medium and heavy duty natural gas engines were the first engines to satisfy U.S. Environmental Protection Agency's (EPA) demanding 2010 emission standards for nitrogen oxides (NOx).

  • The light-duty Honda Civic Natural Gas held the American Council for An Energy-Efficient Economy’s (ACEEE) title of “Greenest Vehicle” for eight consecutive years. 

  • Natural gas primarily consists of methane (around 90%), with small amounts of ethane, propane, and other gases. Methane is lighter than air and burns almost completely, creating carbon dioxide and water as byproducts.

  • Natural gas rises and disperses quickly, so in the event of a leak or emergency venting, surrounding ecosystems and water systems are not threatened.

Environment and Emissions


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  • Compressed natural gas is the cleanest burning fuel operating today. This means less vehicle maintenance and longer engine life. 

  • CNG vehicles produce the fewest emissions of any motor fuel. 

  • Dedicated Natural Gas Vehicles (NGVs) have little or no emissions during fueling. In gasoline vehicles, emissions during fueling account for at least 50% of a vehicle's total hydrocarbon emissions. 

  • CNG produces significantly less pollutants than gasoline. 

  • Tailpipe emissions from gasoline operated cars release carbon dioxide, which contributes to global warming. This is greatly reduced with natural gas.

 Compressed natural gas (CNG) is the cleanest burning transportation fuel on the market today. CNG burns cleaner than petroleum based products because of its lower carbon content. 

It produces 20-30% fewer greenhouse gas emissions and 95% fewer tailpipe emissions than petroleum products. And because CNG fuel systems are completely sealed, NGVs using CNG produce no evaporative emissions.

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Greenhouse Gas Emissions    Emission Reductions

Natural gas contains less carbon than any other fossil fuel and thus produces fewer carbon dioxide (CO2) emissions when burned. While NGVs do emit methane, another principle greenhouse gas (GHG),

the increase in methane emissions is more than offset by a substantial reduction in CO2 emissions. A CNG fueled vehicle emits

20 to 29% fewer GHG emissions than a comparable gasoline or diesel-fueled vehicle on a well-to-wheel basis. For natural gas vehicles that run on bio-methane, the GHG emissions reduction approaches 90%.


The exhaust emissions of natural gas vehicles, when compared to those of gas and diesel vehicles, offer these reductions of common urban pollutants:

• Carbon monoxide (CO) by 70 to 90%

• Non-methane organic gas (NMOG) by 50   to 75%

• Nitrogen oxides (NOx) by 75 to 95%

• Carbon dioxide (CO2) by 20 to 30%


Natural gas vehicles typically cost more than gasoline or diesel vehicles. This is largely due to the cost of high-pressure and insulated fuel tanks, which are necessary

to store CNG. However, the cost of natural gas fuel is now $1.50 to $2.00 less per gallon. The savings in fuel costs can translate into significant savings over the life of a vehicle, depending on fuel efficiency and the number of miles driven. The greatest savings are currently being seen in heavy-duty, high mileage fleets. These vehicles consume enough fuel for owners and operators to see a pay back in as little as 18–24 months. As the price of fuel tanks comes down, light-duty passenger vehicles will become less expensive and also will enjoy a shorter payback period.

{ Natural gas is 15-50% cheaper than gas per GGE. }



CNG is an affordable alternative fuel when compared to gasoline or diesel - it can cut fuel costs by about 50% while delivering the same power and performance. Record U.S. natural gas production and storage levels assure reasonable prices for the foreseeable future.







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Advantage   Petroleum Displacement
  • Natural gas gives the same mileage as gasoline in a converted vehicle. 

  • Dedicated CNG engines are superior in performance to gasoline engines. 

  • CNG has an octane rating of 130 and has an efficiency advantage over gasoline. 

  • Because CNG is already in a gaseous state, NGVs have superior starting and driving ability, even under severe hot and cold weather conditions. 

  • NGVs experience less knocking and no vapor locking.


While the U.S. imports more than 47% of the oil

it uses, 98% of the natural gas used in the U.S. is produced in North America. Every gallon equivalent of natural gas used in vehicles is one less gallon

of petroleum that has to be imported.

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Advantage   Reduced Cost
  • Some fleet operators have reduced maintenance costs by as much as 40% by converting their vehicles to CNG. 

  • Intervals between oil changes for natural gas vehicles are dramatically extended--anywhere from 10,000 to 25,000 additional miles depending on how the vehicle is used. 

  • Natural gas does not react to metals the way gasoline does, so pipes and mufflers last much longer.


CNG does not contain lead, so spark plug life

is extended because there is no fouling. CNG does not dilute or contaminate crankcase oil,

so intervals between oil changes and tune-ups are longer. This reduces maintenance costs while extending the overall life of the engine.

Abundance   American

 In the past 5 years, shale reservoirs revealed natural gas deposits that doubled previous estimated U.S. gas reserves, giving us close to a 100-year supply. Supply is growing as new technology allows us to produce from large reserves that were too difficult to access until recently. Many experts agree that global oil production has peaked,

even though demand still rises. Because

of its growing abundance, domestic natural gas will play a major role in meeting our 21st-century energy needs.

 There are at least 22 shale basins located onshore in more than 20 states in the U.S., including Arkansas, Colorado, Louisiana, Michigan, New Mexico, New York, Oklahoma, Pennsylvania, Texas,

West Virginia, and Wyoming.

 New technologies have allowed the rapid emergence of gas-producing shale as a major energy source, representing a truly transformative event for U.S. energy

supplies. American producers can supply enough natural gas to meet today’s uses 

and become an economical source of transportation fuel.


 Natural gas vehicles (NGVs) are our best

answer for reducing dependence on foreign oil and increasing domestic energy and national security. Almost all of the natural gas we use (98%) comes from North America. Conversely, 60% of the oil we use is imported. We pay approximately $1.25 billion a day for foreign oil, adding to our trade deficit and weakening the dollar.

 By using domestic natural gas, we strengthen both our nation’s economy and energy security – keeping jobs and revenues at home.

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YCNGA Public CNG Station 

975 W Main St, Rock Hill SC 29730




Open 24/7


3,600 PSI


Accepted payment types: Visa, MasterCard, Discover, American Express, Voyager, WEX, and FuelMan 


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