Engine Oil Replacement

Start the engine and allow it to warm up until the temperature of the coolant reaches 80 - 90°C (176 - 194°F).
WARNING: Use care as oil could be hot.
Remove the engine oil filler cap.
Remove the drain plug to drain oil.
Install a new drain plug gasket so that it faces in the direction shown in the illustration, and then tighten the drain plug to the specified torque.
Tightening torque: 39 ± 5 N.m (29 ± 3 ft-lb)

Fig 1: Identifying Drain Plug And Gasket - 2.4L Engine
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.

Fig 2: Identifying Drain Plug And Gasket - 3.0L Engine
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
Refill the specified quantity of oil.
Specified Engine Oil: Engine oils displaying ILSAC certification symbol ("Starburst" symbol) or conforming to the API classification SM or higher

Total quantity:

4.6 dm ³ (4.8 quarts) < 2.4L ENGINE >

4.3 dm ³ (4.5 quarts) < 3.0L ENGINE >

Fig 3: Identifying SAE Grade Number
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.

NOTE: SAE 5W-20 engine oil is optimum for fuel economy and cold starting. SAE 10W-30 may be used when the normal operating temperature is above 38°C (100°F).
Install the engine oil filler cap.
Let the engine run for a few minutes.
Stop the engine, and then check the oil level using the oil dipstick after a few minutes.