Natural Gas Quick Facts
WATCH: Natural Gas 101
How can natural gas can be used in fleet vehicles?
There are two different forms of natural gas that can be used as a fuel for vehicles. These two fuel types are:
- LNG fuel systems are best suited for medium and heavy duty applications. This fuel is produced by super-cooling purified natural gas to -260°F in order to turn it into a liquid. This liquid must be maintained at a very cold temperature so it is stored in double-walled, vacuum-insulated pressure vessels. LNG vehicles are more suited for long range travel than CNG vehicles.
- CNG is typically used in light, medium and heavy duty applications. These vehicles have about the same fuel economy as a traditional gasoline vehicle but the range for most dedicated CNG vehicles is less than most gasoline or diesel vehicles. CNG is stored in cylinders with a pressure of 3,000 to 3,600 pounds per square inch.
CNG Time-fill Stations
Time fill stations are used mainly for fleets and work well for vehicles with larger tanks that refuel at a central location every night. Unlike fast-fill stations, vehicles at time-fill stations are generally filled directly from the compressor, not from fuel stored in tanks.
- The use of natural gas reduces petroleum consumption: Compressed natural gas vehicles use 90% less petroleum as compared to gasoline engines.
- Natural gas is better for the environment: Natural gas vehicles typically emit 6-11% fewer greenhouse gas emissions than comparable gasoline and diesel vehicles throughout the vehicle’s lifecycle. Significant reductions in carbon monoxide and evaporative volatile organic compound emissions are seen in comparison to the emissions of a traditional gasoline vehicle.
- Natural gas is domestically produced: Most of the natural gas consumed in the United States is produced internally. This allows for increased energy security as well as the creation of jobs
- Natural gas is less expensive than traditional gasoline. In order to see the difference in fuel costs, try using the cost calculator below.
There are three types of natural gas vehicles:
- Dedicated: These vehicles run only on natural gas.
- Bi-Fuel: These vehicles run on either natural gas or gasoline through the use of two separate fueling systems.
- Dual-Fuel: These vehicles have fuel systems that run on natural gas but use diesel fuel for ignition assistance. These vehicles are typically only available for heavy duty application.
One of the major benefits of using natural gas vehicles is that users experience no differences in horsepower, acceleration, or cruise speed in comparison to a traditional gasoline powered vehicle.