>> A << Oil Pressure Switch Installation

WARNING: This page is about a different car, the 2008 Mitsubishi Lancer. However, it is still accessible from the selected car via links, so may be relevant.

Apply sealant to the oil pressure switch thread.
Specified sealant: Three bond 1215 or equivalent

Fig 1: Identifying Oil Pressure Switch Thread Dimension
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.

CAUTION: Do not start the engine until 2 hours or more have elapsed after installing the oil pressure switch.
In the same manner as removal, use special tool oil pressure switch wrench (MD992118) to tighten the oil pressure switch to the specified torque.
Tightening torque: 10 ± 2 N.m (89 ± 17 in-lb)

NOTE: Within 3 minutes after the application of sealant, install the oil pressure switch.

Fig 2: Identifying Special Tool Oil Pressure Switch Wrench (MD992118)
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.