Mitsubishi 380. Manual - part 764

ON-VEHICLE SERVICE

ENGINE LUBRICATION

12-4

4. 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)

5. Refill the specified quantity of oil.

   Select engine oil of ther proper SAE viscosity number 

according to the atmospheric temperature SAE  
0W-30, 5W-30 and 5W-40 engine oils can only be used 
if they meet ACEA A3 and API SG (or higher) specififi-
cations.

Use engine oil conforming to the following classifica-
tion:

ACEA classification - "for service A1,A2 or A3"
API classification - "for service SG or higher"

Total quantity:(includes oil filter)
<3.8L Engine> 4.3 litres

6. Install the engine oil filler cap.

7. Check oil level.

ENGINE OIL FILTER REPLACEMENT

M1121001100424
1. 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.

2. Remove the engine oil filler cap.

3. Remove the drain plug to drain oil.
4. Use an oil filter wrench to remove the engine oil filter.

5. Clean the filter bracket side mounting surface and ensure 

the old O-ring has been removed.

AC305937

DRAIN PLUG
GASKET

OIL PAN SIDE

39 ± 5 N·m
29 ± 3 ft-lb

AB

<3.8L ENGINE>

AC000093

MB991610 OR
GENERAL
SERVICE
TOOL

AG

ON-VEHICLE SERVICE

ENGINE LUBRICATION

12-5

6. Apply a small amount of engine oil to the O-ring of the new 

oil filter.

7. Screw on the oil filter by hand until it touches the surface of 

the flange and then tighten it with an oil filter wrench.

8. Install the drain plug and refill engine oil (Refer to Engine Oil 

Replacement 

P.12-3

). 

9. Rev the engine a few times, and check to be sure that no 

engine oil leaks at the oil filter.

ACX00396

O-RING

AB

NUMBER

ENGINE SPECIAL TOOL

TIGHTENING TORQUE

MD352627, 
MD321589

3.8L

General service tool

Approximately one turn [14 

± 2 N⋅m (124 ± 18 in-lb)]

ON-VEHICLE SERVICE

ENGINE LUBRICATION

12-6

ENGINE OIL PRESSURE CHECK

M1121002300614

Required Special Tool:
MD998054: Engine Oil Pressure Switch Wrench
1. Check engine oil quantity.

CAUTION

Since sealant is applied to the thread of the engine oil 
pressure switch, take care not to damage the engine oil 
pressure switch when removing it.
2. Use special tool MD998054 to remove the engine oil 

pressure switch.

NOTE: Remove the terminal of oil pressure switch where 
special tool MD998054 is not fitted.

3. Install the engine oil pressure gauge.

NOTE: Use a 1/8 pipe thread adapter.

4. Run the engine to warm it.

5. After the engine has been warmed up, check that engine oil 

pressure is within the standard value.

Standard value:

At idle: 29 kPa (4.2 psi) or more
At 3,500 r/min: 294 

− 686 kPa (43 − 100 psi)

6. Remove the engine oil pressure gauge.

7. Apply the specified sealant 3M

™ AAD Part number 8672 or 

equivalent to the threads of the engine oil pressure switch.

AK203685

ENGINE OIL 

PRESSURE 

SWITCH

OIL FILTER

AC

<3.8L ENGINE>

AKX00294

MD998054

AB

AKX00295 AB

SPECIFICATIONS

ENGINE LUBRICATION

12-7

CAUTION

Do not start the engine within one hour after the engine 
engine oil pressure switch has been installed.
8. Use special tool MD998054 to tighten the engine oil 

pressure switch to the specified torque.

Tightening torque:

<3.8L ENGINE> 10 

± 2 N⋅m (87 ± 17 in-lb)

SPECIFICATIONS

FASTENER TIGHTENING SPECIFICATIONS

M1121002200305

SERVICE SPECIFICATIONS

M1121000300221

SEALANT

M1121000500225

LUBRICANT

M1121000400701

AKX00294

MD998054

AB

ITEM

SPECIFICATION

Engine oil filter

MD136466, MD322508

17 

± 3 N⋅m (13 ± 2 ft-lb)

Engine oil pan drain plug

39 

± 5 N⋅m (29 ± 3 ft-lb)

Engine oil pressure switch

3.8L Engine

10 

± 2 N⋅m (87 ± 17 in-lb)

ITEM

STANDARD VALUE

Engine oil pressure kPa (psi)

at idle

29 (4.2) or more

at 3,500 r/min

294 

− 686 (43 − 100)

ITEM

SPECIFIED SEALANT

Engine oil pressure switch

3M

™ AAD Part No. 8672 or equivalent

ITEM

ENGINE OIL

QUANTITY (litres) 

Oil filter

Engine oils conforming to ACEA A1, A2 or 
A3 and API classification SG or higher.

0.3 

Total quantity

3.8 L Engine

4.0