Dodge 2016 Viper Owner's Manual page 304

302 STARTING AND OPERATING
3. There is no fuel filler cap. A flapper door inside the
pipe seals the system.
4. Insert the fuel nozzle fully into the filler pipe – the
nozzle opens and holds the flapper door while refuel-
ing.
NOTE: Only the correct size nozzle opens the latches
allowing the flapper door to open.
5. Fill the vehicle with fuel – when the fuel nozzle
"clicks" or shuts off the fuel tank is full.
6. Remove the fuel nozzle and close the fuel door.
NOTE: A funnel is provided (located in the trunk in the
spare tire area) to open the flapper door to allow for
emergency refueling with a gas can.
CAUTION!
To avoid fuel spillage and overfilling, do not "top
off" the fuel tank after filling.
WARNING!
• Never have any smoking materials lit in or near the
vehicle when the fuel door is open or the tank is
being filled.
• Never add fuel when the engine is running. This is
in violation of most state and federal fire regula-
tions and may cause the "Malfunction Indicator
Light" to turn on.
• A fire may result if fuel is pumped into a portable
container that is inside of a vehicle. You could be
burned. Always place fuel containers on the
ground while filling.