Check Oil Level And Condition

Remove the filler plug and gasket.
Check that the oil level is up to the lower edge of the filler plug hole.
Check that the oil is not noticeably dirty.
Tighten the filler plug and new gasket, to the specified torque.
Tightening torque: 49 ± 19 N.m (37 ± 14 ft-lb)

Fig 1: Identifying Engine Oil Filler And Drain Plug
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.

Fig 2: Identifying Engine Oil Filler Plug Hole And Gasket
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.