What fuel quality should be used in my fuel cylinder?
Compressed Natural Gas – The CNG cylinder is designed for use only with dry compressed natural gas that meets SAE J1616 fuel quality. Do not use liquid natural gas, hydrogen, butane, LPG, or other gaseous fuels as a fuel source.
Hydrogen – To ensure proper vehicle operation, it is recommended that the cylinder be filled with hydrogen that meets the following specifications:
Industrial grade 99.95% (“Three Nine”) pure hydrogen that has been verified or certified by the supplier.
Less than 5 ppm carbon monoxide.
No sulfur, phosphates, organic compounds, or trace metals.