CNG Fueling Procedures

Trillium 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:


Before You Begin Fueling

  • Turn off your vehicle
  • Put Out All Smoking Materials
  • Emergency Stop
Step 1
Remove the dust cap from your fueling receptacle
Step 2
Select the correct nozzle for your vehicle
Step 3
Retract the sleeve on the nozzle and push connector onto receptacle
Step 4
Turn the valve to “FILL”
Step 5
Standalone reader: Insert a payment card into the card reader
Step 5.2
OR, Dispenser reader: Insert a payment card into the card reader
Step 6
Lift the dispenser handle to begin fueling
Step 7
Intermittent pauses are a normal part of the filling cycle
Step 8
Fueling will stop when the target pressure for your tank is reached
Step 9
When the fill is complete, push the handle down
Step 10
Turn the valve back to “Vent”
Step 11
Pull back on the sleeve to remove the nozzle
Step 12
Standalone reader: Re-insert your payment card if you want a receipt
Step 12.2
OR, Dispenser reader: Select the “Print receipt” option

    How Safe Is CNG?

  • 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
Payment Types