engine coolant JEEP LIBERTY 2006 KJ / 1.G User Guide

When additional antifreeze/coolant is needed to main-
tain the proper level, it should be added to the coolant
recovery bottle. Do not overfill.
Points To Remember
NOTE: When the vehicle is stopped after a few miles
(kilometers) of operation, you may observe vapor coming
from the front of the engine compartment. This is nor-
mally a result of moisture from rain, snow, or high
humidity accumulating on the radiator and being vapor-
ized when the thermostat opens, allowing hot water to
enter the radiator.
If an examination of your engine compartment shows no
evidence of radiator or hose leaks, the vehicle may be
safely driven. The vapor will soon dissipate.
•Do not overfill the coolant recovery bottle.
•Check antifreeze/coolant freeze point in the system.
•If frequent antifreeze/coolant additions are required,
or if the level in the recovery bottle does not drop
when the engine cools, the cooling system should be
pressure tested for leaks.
•Maintain engine coolant/anti-freeze concentration to
50% HOAT engine coolant/anti-freeze (minimum)
and distilled water for proper corrosion protection of
your engine which contains aluminum components.
•Make sure that the radiator and coolant recovery
bottle hoses are not kinked or obstructed.
•Keep the front of the radiator clean. Also, if your
vehicle is equipped with air conditioning, keep the
front of the condenser clean.
•Do not change the thermostat for summer or winter
operation. If replacement is ever necessary, install
336 MAINTAINING YOUR VEHICLE

FLUID CAPACITIES
U.S. Metric
Fuel (Approximate) 20.5 Gallons 78 Liters
Engine Oil with Filter
3.7 Liter Engines (SAE 5W-30, API Certified Engine Oil) 5 Qts 4.7 Liters
2.8 Liter Diesel Engine (SAE 0W-40 Synthetic Engine Oil) 6.4 Qts 6.1 Liters
Cooling System *
3.7 Liter Engine (Mopar  Antifreeze/Coolant 5 Year/100,000
Mile Formula) 14 Qts 13.2 Liters
2.8 Liter Diesel Engine (Mopar  Antifreeze/Coolant 5 Year/
100,000 Mile Formula) 13 Qts 12.5 Liters
* Includes heater and coolant recovery bottle filled to MAX level.
362 MAINTAINING YOUR VEHICLE

FLUIDS, LUBRICANTS, AND GENUINE PARTS
Engine
Component Fluid, Lubricant, or Genuine Part
Engine Coolant Mopar Antifreeze/Coolant 5 Year/100,000 Mile Formula HOAT (Hybrid Organic Ad-
ditive Technology)
Engine Oil (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 En-
gines) Use SAE 0W-40 Synthetic Engine Oil that meets API Categories SM/CF, and the re-
quirements of DaimlerChrysler Material Standard MS-10725. If SAE 0W-40 is not avail-
able, SAE 5W-40 Synthetic Engine Oil is acceptable.
Oil Filter (3.7L Engine) Mopar Oil Filter (P/N 4781452AA or 4781452BB)
Oil Filter (2.8L Diesel Engine) Mopar Oil Filter (P/N 5003558AA)
Spark Plugs Refer to the Vehicle Emission Control Information label in the engine compartment.
Fuel Selection (Gasoline En-
gines Only) 87 Octane (89 Octane should be used for trailer towing purposes - 3.7L Only).
Fuel Selection (Diesel Engines
Only) Use good quality diesel fuel from a reputable supplier. For most year-round service,
No. 2 diesel fuel meeting ASTM specification D-975 will provide good performance.
This vehicle is fully compatible with biodiesel blends up to 5% biodiesel meeting
ASTM specification D-975.
MAINTAINING YOUR VEHICLE 363
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•Heavy loading.
•Taxi, police, or delivery service (commercial service).
•Off-road or desert driving.
•If equipped for and operated with E-85 (ethanol)
fuel.
NOTE: IfANY of these apply to you then change your
engine oil every 3,000 miles (5 000 km) or 3 months,
whichever comes first and follow “Schedule B” of the
“Maintenance Schedules” section of this manual.
NOTE: IfANY of these apply to you then flush and
replace your engine coolant/anti-freeze every 102,000
miles (170 000 km) or 60 months, whichever comes first,
and follow “Schedule B” of the “Maintenance Schedules”
section of this manual.
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.
At Each Stop for Fuel
•Check 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.
MAINTENANCE SCHEDULES 367
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•Check the windshield washer solvent, add as required.
Once a Month
•Check the tire pressure and look for unusual wear or
damage.
•Inspect the battery, and clean and tighten the terminals
as required.
•Check the fluid levels of the engine coolant/anti-
freeze reservoir, brake master cylinder, and transmis-
sion, and add as needed.
•Check all lights and all other electrical items for correct
operation. At Each Oil Change
•Change the engine oil filter.
•Inspect the exhaust system.
•Inspect brake hoses.
•Check the engine coolant/anti-freeze level, hoses, and
clamps.
•After completion of off-road operation, the underside
of the vehicle should be thoroughly inspected. Exam-
ine threaded fasteners for looseness.
368 MAINTENANCE SCHEDULES
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Schedule “B” — Gasoline 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.
•Heavy loading.
•Taxi, police, or delivery service (commercial service).
•Off-road or desert driving.
•If equipped for and operated with E-85 (ethanol) fuel.
NOTE: IfANY of these apply to you then change your
engine oil every 3,000 miles (5 000 km) or 3 months,
whichever comes first and follow “Schedule B” of the
“Maintenance Schedules” section of this manual.
NOTE: IfANY of these apply to you then flush and
replace your engine coolant/anti-freeze every 102,000
miles (170 000 km) or 60 months, whichever comes first,
and follow “Schedule B” of the “Maintenance Schedules”
section of this manual.
SCHEDULE “B” — GASOLINE ENGINES 369
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Miles 48,000 51,000 54,000 57,000 60,000
(Kilometers) (80 000) (85 000) (90 000) (95 000) (100 000)
Change the engine oil and engine oil filter, if not replaced
at 3 months. XXXXX
Rotate the tires. 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. X
Inspect the brake linings. X X
Drain and refill the front and rear axle fluid‡ X
Inspect the manual transmission fluid, add as necessary. X
Drain and refill the automatic transmission fluid, replace
main sump filter, and spin-on cooler return filter (if
equipped).† X
Inspect the drive belt and replace as needed. Not required
if belt was previously replaced. X
Drain and refill the transfer case fluid. X
Flush and replace the engine coolant/anti-freeze. X
SCHEDULE “B” — GASOLINE ENGINES 373
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Miles 93,000 96,000 99,000 102,000 105,000
(Kilometers) (155 000) (160 000) (165 000) (170 000) (175 000)
Change the engine oil and engine oil filter, if not
replaced at 3 months. X X XXX
Rotate the tires. 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 fluid‡ X
Inspect the drive belt and replace as needed. Not
required if belt was previously replaced. X
Flush and replace the engine coolant/anti-freeze, if
not done at 60 months. X
376 SCHEDULE “B” — GASOLINE ENGINES
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Miles 108,000 111,000 114,000 117,000 120,000
(Kilometers) (180 000) (185 000) (190 000) (195 000) (200 000)
Drain and refill the transfer case fluid. X
Flush and replace the engine coolant/anti-freeze at
120 months, if not replaced at 102,000 miles (170
000 km). X
Inspection and service should be performed anytime a
malfunction is observed or suspected. Retain all receipts.
† Applies only if vehicle is used for frequent trailer
towing, or fleet/commercial service.
This maintenance is recommended by the manufac-
turer to the owner, but it is not required to maintain
emissions warranty. ‡Off-highway operation, trailer towing, taxi, limousine,
bus, snow plowing, or other types of commercial service
or prolonged operation with heavy loading, especially in
hot weather, require front and rear axle service indicated
witha‡in Schedule “B”. Perform these services if the
vehicle is usually operated under these conditions.
378 SCHEDULE “B” — GASOLINE ENGINES
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Miles 60,000 66,000 72,000 78,000
(Kilometers) (100 000) (110 000) (120 000) (130 000)
[Months] [60] [66] [72] [78]
Change the engine oil and engine oil filter. X X X X
Rotate the tires. X X X X
Inspect the engine air filter element, and replace if nec-
essary. X
Replace the spark plugs. X
Inspect and replace the PCV valve, if necessary. X
Inspect the brake linings. X
Inspect the drive belt and replace, if needed. X
Inspect the drive belt and replace as needed. Not re-
quired if previously replaced. X
Flush and replace the engine coolant/anti-freeze. X
Inspect the manual transmission fluid, add as necessary. X
Inspect the transfer case fluid. X
SCHEDULE “A” — GASOLINE ENGINES 381
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