Natural gas is used as a transportation fuel worldwide, in fact, the State of West Virginia has an extensive refueling network . The dedicated CNG vehicle's engine can be optimized for CNG's combustion characteristics. Conversion To convert a gasoline vehicle to operate on CNG is relatively simple for a trained mechanic, but safety measures must be considered. The spark timing must be advanced. The fuel tank is the most expensive part of the conversion kit for a CNG vehicle.
Total cost depends on make and number of vehicles converted.
Different types of after-market kits are commercially available for converting vehicles to operate on natural gas. The State of West Virginia now offers a tax credit for individuals and companies who convert their vehicles to natural gas.