2004 JEEP LIBERTY engine oil

²Off-road or desert driving.
NOTE:Most vehicles are operated under the conditions
listed for Schedule ªB.º
Second is ScheduleªAº. It is for vehicles that are not
operated under any of the conditions listed under Sched-
ule ªB.º
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.
At Each Stop for Fuel
²Check the engine oil level about 5 minutes after a fully
warmed engine is shut off. Checking the oil level while
the vehicle is on level ground will improve the accu-
racy of the oil level reading. Add oil only when the
level is at or below the ADD or MIN mark.
²Check the windshield washer solvent, add as required.
Once a Month
²Check the tire pressure and look for unusual wear or
damage.
²Inspect the battery, and clean and tighten the terminals
as required.
²Check the fluid levels of the coolant reservoir, brake
master cylinder, and transmission, and add as needed.
²Check all lights and all other electrical items for correct
operation.
MAINTENANCE SCHEDULES 331
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At Each Oil Change
²Change the engine oil filter.
²Inspect the exhaust system.
²Inspect brake hoses.
²Check the coolant level, hoses, and clamps.
²Inspect manual transmission fluid level Ð if
equipped.
²Rotate the tires at each oil change interval shown on
Schedule ªAº 6,000 miles (10 000 km) or every other
interval shown on Schedule ªBº 6,000 miles (10 000
km).
²After completion of off-road operation, the underside
of the vehicle should be thoroughly inspected. Exam-
ine threaded fasteners for looseness.
332 MAINTENANCE SCHEDULES
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Schedule ªBº
Follow schedule ªBº if you usually operate your vehicle
under one or more of the following conditions.
²Day or night temperatures are below 32ÉF (0ÉC).
²Stop and go driving.
²Extensive engine idling.
²Driving in dusty conditions.
²Short trips of less than 10 miles (16.2 km).
²More than 50% of your driving is at sustained high
speeds during hot weather, above 90ÉF (32ÉC).
²Trailer towing.
²Taxi, police, or delivery service (commercial service).
²Off-road or desert driving.
Miles 3,000 6,000 9,000 12,000 15,000
(Kilometers) (5 000) (10 000) (14 000) (19 000) (24 000)
Change the engine oil and engine oil filter. X X X X X
Inspect the engine air filter element, replace if
necessary.X
Inspect the brake linings. X
Drain and refill the front and rear axle fluid³ X
SCHEDULE ªBº 333
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Miles 18,000 21,000 24,000 27,000 30,000
(Kilometers) (29 000) (34 000) (38 000) (43 000) (48 000)
Change the engine oil and engine oil filter. X X X X X
Inspect the engine air filter element, replace if
necessary.X
Replace the spark plugs.X
Inspect and replace the PCV valve, if necessary.LX
Inspect the brake linings. X
Drain and refill the front and rear axle fluid³ X
Inspect the transfer case fluid, add if necessary. X
334 SCHEDULE ªBº
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Miles 33,000 36,000 39,000 42,000 45,000
(Kilometers) (53 000) (58 000) (62 000) (67 000) (72 000)
Change the engine oil and engine oil filter. X X X X X
Inspect the engine air filter element, replace if
necessary.X
Inspect the brake linings. X
Drain and refill the front and rear axle fluid³ X
Inspect the drive belt and replace as needed. X
SCHEDULE ªBº 335
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Miles 48,000 51,000 54,000 57,000 60,000
(Kilometers) (77 000) (82 000) (86 000) (91 000) (96 000)
Change the engine oil and engine oil filter. X X X X X
Inspect the engine air filter element, replace if
necessary.X
Replace the spark plugs.X
Inspect and replace the PCV valve, if necessary.LX
Replace the ignition cables (2.4L Only).X
Inspect the brake linings. X X
Drain and refill the front and rear axle fluid³ X X
Drain and refill the automatic transmission fluid,
and replace main sump filter.X
Inspect the drive belt and replace as needed. Not
required if belt was previouslyX
Drain and refill the transfer case fluid. X
336 SCHEDULE ªBº
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Miles 63,000 66,000 69,000 72,000 75,000
(Kilometers) (101 000) (106 000) (110 000) (115 000) (120 000)
Change the engine oil and engine oil filter. X X X X X
Inspect the engine air filter element, replace if
necessary.X
Inspect the brake linings. X
Drain and refill the front and rear axle fluid³ X
Inspect the drive belt and replace as needed. Not
required if belt was previously replaced.X
SCHEDULE ªBº 337
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Miles 78,000 81,000 84,000 87,000 90,000
(Kilometers) (125 000) (130 000) (134 000) (139 000) (144 000)
Change the engine oil and engine oil filter. X X X X X
Inspect the engine air filter element, replace if
necessary.X
Replace the spark plugs.X
Inspect and replace the PCV valve, if necessary.LX
Inspect the brake linings. X
Drain and refill the front and rear axle fluid³ X
Inspect the drive belt and replace as needed. Not
required if belt was previously replaced.X
Replace the timing belt (2.4L Only).X
Inspect the transfer case fluid, add if necessary. X
338 SCHEDULE ªBº
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