Lexus GS300 1998 Owner's Manual page 114

15G007
2. To remove the fuel tank cap, turn the cap slowly
counterclockwise, then pause slightly before removing it.
The removed cap can be stored on the back side of the fuel
filler door.
It is not unusual to hear a slight swoosh when the cap is
opened. When installing the cap, turn the cap clockwise until
you hear a click.
If the cap is not tightened securely, the malfunction indicator
lamp comes on. Make sure the cap is tightened securely.
The indicator lamp goes off after driving several times. If the
indicator lamp does not go off, contact your Lexus dealer as
soon as possible.
CAUTION
D Make sure the cap is tightened securely to prevent
fuel spillage in case of an accident.
D Use only a genuine Lexus fuel tank cap for
replacement. It has a built–in check valve to reduce
fuel tank vacuum.
EXTERIOR EQUIPMENT
101