What NGVs are available? A wide variety of new, heavy-duty NGVs are available. The Honda Civic GX is the only light-duty NGV available from a U.S. original equipment manufacturer (OEM). Consumers and fleets also have the option of economically and reliably converting existing light- or heavy-duty gasoline or diesel vehicles for natural gas operation using certified installers. See the Conversions page in the Vehicles section of the Alternative Fuels and Advanced Vehicles Data Center (AFDC) Web site at For the latest new vehicle offerings, also see the AFDC's light-duty and heavy-duty vehicle searches.

How do NGVs work? NGVs operate in one of three modes: dedicated, bifuel, or dual-fuel. Dedicated NGVs run on only natural gas. Bifuel NGVs can run on either natural gas or gasoline. Dual-fuel vehicles run on natural gas and use diesel for ignition assist. Light-duty vehicles typically operate in dedicated or bifuel modes, and heavy-duty vehicles operate in dedicated or dual-fuel modes.

A CNG fuel system transfers high-pressure natural gas from the storage tank to the engine while reducing the pressure of the gas to the operating pressure of the engine's fuel-management system. The natural gas is injected into the engine intake air the same way gasoline is injected into a gasoline-fueled engine. The engine functions the same way as a gasoline engine: The fuel-air mixture is compressed and ignited by a spark plug and the expanding gases produce rotational forces that propel the vehicle.

On the vehicle, natural gas is stored in tanks as CNG, or in some heavy-duty vehicles, as LNG, a more expensive option. The form chosen is often dependent on the range a driver needs. More natural gas can be stored in the tanks as LNG than as CNG.

Fueling Freedom to raise money for military families
On Friday, June 23 between noon and 5 p.m. at participating CountryMark fuel stations, CountryMark will donate to local National Guard Family Readiness Groups.
CountryMark fuels new History on Wheels traveling exhibit
The Indiana Historical Society recently debuted a one-of-a-kind history experience focused on sharing Indiana's auto heritage. CountryMark is proud to serve as the key fuel sponsor for the History on Wheels traveling exhibit for 2017.
New Kentucky retail site features CountryMark premium fuels
Motorists have a convenient, new option to fuel up with CountryMark's premium gasoline and diesel fuel right off of Interstate 69 in Madisonville, Ky.
City of Fort Wayne: Why We Run a CountryMark Biodiesel Blend
"We have been very pleased with our CountryMark biodiesel blend .."
MITS: Why We Run a CountryMark Biodiesel Blend
"We have been running a CountryMark biodiesel blend in our fleet for 12 years and have experienced no issues ..."

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