Mitsubishi MOTORS Space Runner 1999 Workshop Manual Supplement page 306

Lower oil pan
Drain plug
gasket
ENGINE <4G9> –
REMOVAL SERVICE POINTS
AA
Place a piece of wood against the lower oil pan, and tap
the piece of wood with a hammer to remove the lower oil
pan.
Caution
Because the upper oil pan used is made from aluminium,
the oil pan remover (MB998727) should not be used.
AB
Insert a flat-tipped screwdriver into the notch of the upper
oil pan as shown in the illustration, and turn it to remove the
oil pan.
Caution
Because the upper oil pan used is made from aluminium,
the oil pan remover (MB998727) should not be used.
INSTALLATION SERVICE POINTS
AA DRAIN PLUG GASKET INSTALLATION
Install the drain plug gasket in the direction so that it faces
Oil pan side
as shown in the illustration.
Oil Pan
LOWER OIL PAN REMOVAL
UPPER OIL PAN REMOVAL
11A-23