Transmission Oil Replacement

Remove the filler plug.
Remove the drain plug and drain the oil.
Tighten the oil drain plug to the specified torque.
Tightening torque < W5M51 >: 32 +/- 2 N. m (23 +/- 2 ft-lb)

Tightening torque < W6MAA >: 35 +/- 4 N. m (26 +/- 3 ft-lb)
Fill with specified oil till the level comes to the lower portion of oil filler plug hole.

Fig 1: Removing Filler Plug
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.

Specified transmission oil < W5M51 >: Gear oil API classification GL - 4 SAE 75W-85W or 75W- 90

Specified transmission oil < W6MAA >: DIA QUEEN SUPER MULTI GEAR SAE 75W- 85 (GL - 4) or exact equivalent

Quantity < W5M51 >: 2.8 dm ³ (2.9 quart)

Quantity < W6MAA >: 2.2 dm ³ (2.3 quart)
Tighten the oil filler plug to the specified torque.
Tightening torque < W5M51 >: 32 +/- 2 N. m (23 +/- 2 ft-lb)

Tightening torque < W6MAA >: 35 +/- 4 N. m (26 +/- 3 ft-lb)

Fig 2: Tightening Oil Filler Plug
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.