Dodge Durango Owner's Manual page 358

356 STARTING AND OPERATING
CAUTION!
Damage to the fuel system or emission control
system could result from using an improper fuel
tank filler tube cap (gas cap). A poorly fitting cap
could let impurities into the fuel system.
A poorly fitting gas cap may cause the Malfunc-
tion Indicator Light (MIL) to turn on.
To avoid fuel spillage and overfilling, do not "top
off" the fuel tank after filling.
NOTE: When the fuel nozzle "clicks" or shuts off, the
fuel tank is full.
WARNING!
Never have any smoking materials lit in or near
the vehicle when the gas cap is removed or the
tank filled.
Never add fuel when the engine is running.
NOTE: Tighten the gas cap about 1/4 turn until you
hear one click. This is an indication that cap is properly
tightened.
If the gas cap is not tightened properly, the Malfunction
Indicator Light will come on. Be sure the gas cap is
tightened every time the vehicle is refueled.