CNG Fueling Procedures
Whether you’re an experienced or first-time CNG fueler, it’s important to understand and follow correct fueling procedures.
If you need further assistance fueling or have any concerns, please contact our 24 hour dispatch service line at:
1-800-920-1166
Before You Begin Fueling
Remove the dust cap from your fueling receptacle
Select the correct nozzle for your vehicle
Retract the sleeve on the nozzle and push connector onto receptacle
Turn the valve to “FILL”
Standalone reader: Insert a payment card into the card reader
OR, Dispenser reader: Insert a payment card into the card reader
Lift the dispenser handle to begin fueling
Intermittent pauses are a normal part of the filling cycle
Fueling will stop when the target pressure for your tank is reached
When the fill is complete, push the handle down
Turn the valve back to “Vent”
Pull back on the sleeve to remove the nozzle
Standalone reader: Re-insert your payment card if you want a receipt
OR, Dispenser reader: Select the “Print receipt” option
- CNG has a narrow flammability range
- It is far more likely that either gasoline or diesel would ignite than natural gas
- Natural gas is non-toxic, non-corrosive and will not contaminate groundwater
- Compared to gasoline, CNG reduces carbon monoxide emissions by 90- 97%, nitrogen oxide by up to 60% and hydrocarbon by 50-75% CNG storage cylinders are subjected to severe abuse tests that include heat and pressure extremes, gunfire, collisions, and fires before they can pass inspections
- Natural gas is lighter than air and will dissipate rapidly rather than pool in one place