2005 JEEP LIBERTY Diesel

FLUID CAPACITIES
U.S. Metric
Fuel (Approximate)20.5 Gallons 78 Liters
Engine Oil with Filter
2.4/3.7 Liter Engines (SAE 5W-30, API Certified Engine Oil) 5 Qts 4.7 Liters
2.8 Liter Diesel Engine (SAE 0W-40 Mobil 1Synthetic, API
Certified Engine Oil)6.4 Qts 6.1 Liters
Cooling System *
2.4 Liter Engine (MoparAntifreeze/Coolant 5 Year/100,000
Mile Formula)10 Qts 9.5 Liters
3.7 Liter Engine (MoparAntifreeze/Coolant 5 Year/100,000
Mile Formula)14 Qts 13.2 Liters
2.8 Liter Diesel Engine (MoparAntifreeze/Coolant 5 Year/
100,000 Mile Formula)11.8 Qts 12.5 Liters
* Includes heater and coolant recovery bottle filled to MAX level.
356 MAINTAINING YOUR VEHICLE

RECOMMENDED FLUIDS, LUBRICANTS AND GENUINE PARTS
Engine
Component Fluid, Lubricant, or Genuine Part
Engine Coolant MoparAntifreeze/Coolant 5 Year/100,000 Mile Formula HOAT (Hybrid Or-
ganic Additive Technology)
Engine Oil (2.4L and 3.7L Engines) Use API Certified SAE 5W-30 Engine Oil, meeting the requirements of
DaimlerChrysler Material Standard MS-6395.
Engine Oil (2.8L Diesel Engines) Use API Certified SAE 0W-40 Mobil 1Synthetic Engine Oil that meets API
Categories SL/CF, and the requirements of DaimlerChrysler Material Stan-
dard MS-10725. If SAE 0W-40 is not available, SAE 5W-40 Mobil 1Synthetic
Engine Oil is acceptable.
Oil Filter (2.4L Engine) MoparOil Filter (P/N 4105409 or 4105409AB)
Oil Filter (3.7L Engine) MoparOil Filter (P/N 4781452AA or 4781452BB)
Oil Filter (2.8L Diesel Engine) MoparOil Filter (P/N 05072720AA)
Spark Plugs Refer to the Vehicle Emission Control Information label in the engine com-
partment.
Fuel Selection (Gasoline Engines
Only)87 Octane (89 Octane should be used for trailer towing purposes - 3.7L
Only).
MAINTAINING YOUR VEHICLE 357
7

MAINTENANCE SCHEDULES
CONTENTS

Emission Control System Maintenance........360

Maintenance Schedules — Gasoline Engines....360
▫Schedule “B” — Gasoline Engines.........363
▫Schedule “A” — Gasoline Engines.........373
Maintenance Schedules — Diesel Engines.....378
▫Schedule “B” — Diesel Engines...........380
▫Schedule “A” — Diesel Engines...........385
8
M
A
I
N
T
E
N
A
N
C
E
S
C
H
E
D
U
L
E
S

MAINTENANCE SCHEDULES — DIESEL ENGINES
There are two maintenance schedules that show the
requiredservice for your vehicle.
First is ScheduleB. It is for vehicles that are operated
under the conditions that are listed below and at the
beginning of the schedule.
•Day or night temperatures are below 32°F (0°C).
•Stop and go driving.
•Extensive engine idling.
•Driving in dusty conditions.
•Short trips of less than 10 miles (16.2 km).
•More than 50% of your driving is at sustained high
speeds during hot weather, above 90°F (32°C).
•Trailer towing.
•Taxi, police, or delivery service (commercial service).
•Off-road or desert driving.
NOTE:Most vehicles are operated under the conditions
listed for Schedule “B.”
Second is Schedule“A”. It is for vehicles that are not
operated under any of the conditions listed under Sched-
ule “B.”
Use the schedule that best describes your driving condi-
tions. Where time and mileage are listed, follow the
interval that occurs first.
CAUTION!
Failure to perform the required maintenance items
may result in damage to the vehicle.
378 SCHEDULE “A” — GASOLINE ENGINES
8
M
A
I
N
T
E
N
A
N
C
E
S
C
H
E
D
U
L
E
S

Schedule “B” — Diesel Engines
Follow schedule “B” if you usually operate your vehicle
under one or more of the following conditions.
•Day or night temperatures are below 32°F (0°C).
•Stop and go driving.
•Extensive engine idling.
•Driving in dusty conditions.
•Short trips of less than 10 miles (16.2 km).
•More than 50% of your driving is at sustained high
speeds during hot weather, above 90°F (32°C).
•Trailer towing.
•Taxi, police, or delivery service (commercial service).
•Off-road or desert driving.
380 SCHEDULE “B” — DIESEL ENGINES
8
M
A
I
N
T
E
N
A
N
C
E
S
C
H
E
D
U
L
E
S

Miles 6,250 12,500 18,750 25,000 31,250
(Kilometers) (10 000) (20 000) (30 000) (40 000) (50 000)
Change the engine oil and engine oil filter. X X X X X
Inspect the engine air filter element. Replace as
necessary.X X XXX
Replace the engine air filter element.XX
Inspect the boost pressure solenoid filter. Replace
as necessary.X X XXX
Replace the fuel filter/water separator unit. X
Inspect the brake linings. X X
Drain and refill the front and rear axle fluid. X X
SCHEDULE “B” — DIESEL ENGINES 381
8
M
A
I
N
T
E
N
A
N
C
E
S
C
H
E
D
U
L
E
S

Miles 37,500 43,750 50,000 56,250 62,500
(Kilometers) (60 000) (70 000) (80 000) (90 000) (100 000)
Change the engine oil and engine oil filter. X X X X X
Inspect the engine air filter element. Replace as
necessary.X X XXX
Replace the engine air filter element.XXX
Inspect the boost pressure solenoid filter. Replace
as necessary.X X XXX
Replace the boost pressure solenoid filter, if not
previously replaced.X
Replace the fuel filter/water separator unit. X
Replace the engine accessory drive belt. X
Inspect the brake linings. X X X
Drain and refill the front and rear axle fluid. X X X
Drain and refill the transfer case fluid. X
Drain and refill the automatic transmission fluid,
and replace sump filter. X
382 SCHEDULE “B” — DIESEL ENGINES
8
M
A
I
N
T
E
N
A
N
C
E
S
C
H
E
D
U
L
E
S

Miles 68,750 75,000 81,250 87,500 93,750 100,000
(Kilometers) (110 000) (120 000) (130 000) (140 000) (150 000) (160 000)
Change the engine oil and engine oil filter. X X X X X X
Inspect the engine air filter element. Re-
place as necessary.XXXXXX
Replace the engine air filter element.XXX
Inspect the boost pressure solenoid filter. Re-
place as necessary.XXXXXX
Replace the boost pressure solenoid filter, if
not previously replaced.X
Replace the engine accessory drive belt. X
Replace the engine timing belt and idler pul-
leys.X
Inspect the engine timing belt tensioner, re-
place if necessary.†X
Replace the fuel filter/water separator unit. X X
Flush and replace the engine coolant/anti-
freeze.X
SCHEDULE “B” — DIESEL ENGINES 383
8
M
A
I
N
T
E
N
A
N
C
E
S
C
H
E
D
U
L
E
S