Page 46 - ESP (CNG) Participant Guide

Module 5: CNG Fueling Station Safety Systems and Fueling Practices

11. To begin fueling, lift the handle on the
dispenser for the hose you are using.

Stand away from area between the
nozzle/receptacle and dispenser during
fueling.

12. While fueling the vehicle you may hear gas flow slow down, stop and then restart.
This is normal. As gas flow slows you may also hear a whining sound from the nozzle. This is also
normal, indicating that the vehicle is almost full.

13. When fueling from a dispenser that displays GGE and the
display indicates the fill is at 100% and gas flow has stopped,
the vehicle is full. Push handle on dispenser, for the hose you
are using, to the off position.

Normal vs.  It is considered normal for a small amount of gas to escape the nozzle-receptacle connection
Abnormal when disconnected
Condition  May be able to detect the smell for a brief period of time

 A scent or audible “hiss” that lingers is not considered normal and should be reported to
fueling station maintenance

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