Jeep Liberty KJ. Manual - part 5

FLUID TYPES

DESCRIPTION

ENGINE OIL

WARNING: New or used engine oil can be irritating to the skin. Avoid prolonged or repeated skin contact
with engine oil. Contaminants in used engine oil, caused by internal combustion, can be hazardous to your
health. Thoroughly wash exposed skin with soap and water. Do not wash skin with gasoline, diesel fuel,
thinner, or solvents, health problems can result. Do not pollute, dispose of used engine oil properly. Contact
your dealer or government agency for location of collection center in your area.

Only lubricants bearing designations defined by the following organization should be used.

•

Society of Automotive Engineers (SAE)

•

American Petroleum Institute (API)

•

National Lubricating Grease Institute (NLGI)

•

Association des Constructeurs Européens d’ Automobiles (European Automobile Manufacturers Association)
(ACEA)

API SERVICE GRADE CERTIFIED

Use an engine oil that is API Certified. MOPAR

provides engine oils, that meet or exceed this requirement.

SAE VISCOSITY

An SAE viscosity grade is used to specify the viscosity of engine oil. Use only engine oils with multiple viscosities
such as 5W-30 or 10W-30. These are specified with a dual SAE viscosity grade which indicates the cold-to-hot
temperature viscosity range. Select an engine oil that is best suited to your particular temperature range and vari-
ation.

ACEA Categories

For countries that use the ACEA European Oil Cate-
gories for Service Fill Oils, use engine oils that meet
the requirements of ACEA A1/B1, A2/B2, or A3/B3.

ENERGY CONSERVING OIL

An Energy Conserving type oil is recommended for
gasoline engines. The designation of ENERGY CON-
SERVING is located on the label of an engine oil con-
tainer.

CONTAINER IDENTIFICATION

Standard engine oil identification notations have been adopted to aid in the proper selection of engine oil. The iden-
tifying notations are located on the front label of engine oil plastic bottles and the top of engine oil cans.

This symbol means that the oil has been certified by the American Petroleum Institute (API). DaimlerChrysler only
recommends API Certified engine oils. Use Mopar

engine oil or equivalent.

ENGINE OIL - DIESEL ENGINES

Only use synthetic engine oils meeting the API Cate-
gories

SL/CF

and

Chrysler

Material

Standard

MS-10725. Those engine oils not meeting the viscosity
and API Quality and MS-10725 requirements should
not be used.

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LUBRICATION & MAINTENANCE

SAE VISCOSITY GRADE

The preferred engine oil is SAE 0W-40 Mobil

One Synthetic. If you can not locate SAE 0W-40 Mobil

One Syn-

thetic, then SAE 5W-40 Mobil

One Synthetic would be acceptable.

ENGINE OIL - DIESEL ENGINES - EXPORT

Use only Diesel Engine Oil meeting standard MIL-2104C or API Classification CD or higher or CCML D4, D5.

SAE VISCOSITY GRADE

CAUTION: Low viscosity oils must have the proper API quality or the CCMC G5 designation.

To assure of properly formulated engine oils, it is recommended that SAE Grade 10W-40 engine oils that meet
Chrysler material standard MS-6395, be used in accordance to ACEA B3, B4 specification. European Grade 10W-40
oils are also acceptable.

Oils of the SAE 5W-40 grade number are preferred when minimum temperatures consistently fall below -15° C (5°
F).

AXLE

NOTE: DaimlerChrysler recommends using Mopar

lubricants or lubricants of equal quality.

FRONT AXLE

•

186FIA (Model 30) - Mopar

Lubricant 80W-90

REAR AXLE

•

8 1/4 - Mopar

Gear Lubricant 75W-90 (Trailer Towing - Mopar

Synthentic Gear Lubricant 75W-140

NOTE: Trac-lok

equipped axles require 118 ml (4 ounces) of Limited Slip Additive be added to the lubricant.

MANUAL TRANSMISSION

NOTE: DaimlerChrysler recommends using Mopar

lubricants or lubricants of equal quality.

•

NSG370 - Mopar

Manual Transmission Lubricant MS-9224

AUTOMATIC TRANSMISSION FLUID

NOTE: Refer to Service Procedures in this group for fluid level checking procedures.

Mopar

ATF +4, Automatic Transmission Fluid is the recommended fluid for DaimlerChrysler automatic transmis-

sions.

Dexron II fluid IS NOT recommended. Clutch chatter can result from the use of improper fluid.

Mopar

ATF +4, Automatic Transmission Fluid when new is red in color. The ATF is dyed red so it can be identified

from other fluids used in the vehicle such as engine oil or antifreeze. The red color is not permanent and is not an
indicator of fluid condition. As the vehicle is driven, the ATF will begin to look darker in color and may eventually
become brown. This is normal. ATF+4 also has a unique odor that may change with age. Consequently, odor and
color cannot be used to indicate the fluid condition or the need for a fluid change.

FLUID ADDITIVES

DaimlerChrysler strongly recommends against the addition of any fluids to the transmission, other than those auto-
matic transmission fluids listed above. Exceptions to this policy are the use of special dyes to aid in detecting fluid
leaks.

Various “special” additives and supplements exist that claim to improve shift feel and/or quality. These additives and
others also claim to improve converter clutch operation and inhibit overheating, oxidation, varnish, and sludge.
These claims have not been supported to the satisfaction of DaimlerChrysler and these additives must not be

LUBRICATION & MAINTENANCE

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used. The use of transmission “sealers” should also be avoided, since they may adversely affect the integrity of
transmission seals.

TRANSFER CASE - NV231

Recommended lubricant for the NV231 transfer case is Mopar

ATF +4, Automatic Transmission Fluid.

TRANSFER CASE - NV241 GENII

Recommended lubricant for the NV2421 GENII transfer case is Mopar

ATF+4, Automatic Transmission Fluid.

TRANSFER CASE - NV242

Recommended lubricant for the NV242 transfer case is Mopar

ATF+4, Automatic Transmission Fluid.

ENGINE COOLANT

WARNING: Antifreeze is an ethylene glycol base coolant and is harmful if swallowed or inhaled. If swal-
lowed, drink two glasses of water and induce vomiting. If inhaled, move to fresh air area. Seek medical
attention immediately. Do not store in open or unmarked containers. Wash skin and clothing thoroughly
after coming in contact with ethylene glycol. Keep out of reach of children. Dispose of glycol base coolant
properly, contact your dealer or government agency for location of collection center in your area. Do not
open a cooling system when the engine is at operating temperature or hot under pressure, personal injury
can result. Avoid radiator cooling fan when engine compartment related service is performed, personal
injury can result.

CAUTION: Use of Propylene Glycol based coolants is not recommended, as they provide less freeze pro-
tection and less corrosion protection.

The cooling system is designed around the coolant. The coolant must accept heat from engine metal, in the cylinder
head area near the exhaust valves and engine block. Then coolant carries the heat to the radiator where the tube/
fin radiator can transfer the heat to the air.

The use of aluminum cylinder blocks, cylinder heads, and water pumps requires special corrosion protection.
Mopar

Antifreeze/Coolant, 5 Year/100,000 Mile Formula (MS-9769), or the equivalent ethylene glycol base coolant

with organic corrosion inhibitors (called HOAT, for Hybrid Organic Additive Technology) is recommended. This cool-
ant offers the best engine cooling without corrosion when mixed with 50% Ethylene Glycol and 50% distilled water
to obtain a freeze point of -37°C (-35°F). If it loses color or becomes contaminated, drain, flush, and replace with
fresh properly mixed coolant solution.

CAUTION: Mopar

Antifreeze/Coolant, 5 Year/100,000 Mile Formula (MS-9769) may not be mixed with any

other type of antifreeze. Mixing of coolants other than specified (non-HOAT or other HOAT), may result in
engine damage that may not be covered under the new vehicle warranty, and decreased corrosion protec-
tion.

COOLANT PERFORMANCE

The required ethylene-glycol (antifreeze) and water mixture depends upon climate and vehicle operating conditions.
The coolant performance of various mixtures follows:

Pure Water-Water can absorb more heat than a mixture of water and ethylene-glycol. This is for purpose of heat
transfer only. Water also freezes at a higher temperature and allows corrosion.

100 percent Ethylene-Glycol-The corrosion inhibiting additives in ethylene-glycol need the presence of water to
dissolve. Without water, additives form deposits in system. These act as insulation causing temperature to rise to as
high as 149°C (300°F). This temperature is hot enough to melt plastic and soften solder. The increased temperature
can result in engine detonation. In addition, 100 percent ethylene-glycol freezes at -22°C (-8°F).

50/50 Ethylene-Glycol and Water-Is the recommended mixture, it provides protection against freezing to -37°C
(-34°F). The antifreeze concentration must always be a minimum of 44 percent, year-round in all climates. If per-
centage is lower, engine parts may be eroded by cavitation. Maximum protection against freezing is provided with a
68 percent antifreeze concentration, which prevents freezing down to -67.7°C (-90°F). A higher percentage will

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LUBRICATION & MAINTENANCE

freeze at a warmer temperature. Also, a higher percentage of antifreeze can cause the engine to overheat because
specific heat of antifreeze is lower than that of water.

CAUTION: Richer antifreeze mixtures cannot be measured with normal field equipment and can cause prob-
lems associated with 100 percent ethylene-glycol.

CAUTION: Do not use coolant additives that are claimed to improve engine cooling.

POWER STEERING FLUID

Mopar

ATF +4, Automatic Transmission Fluid is required in the power steering system. Substitute fluids can induce

power steering system failure.

Mopar

ATF +4, Automatic Transmission Fluid when new is red in color. The ATF is dyed red so it can be identified

BRAKE FLUID

The brake fluid used in this vehicle must conform to DOT 3 specifications and SAE J1703 standards. No other type
of brake fluid is recommended or approved for usage in the vehicle brake system. Use only Mopar brake fluid or an
equivalent from a tightly sealed container.

CAUTION: Never use reclaimed brake fluid or fluid from an container which has been left open. An open
container of brake fluid will absorb moisture from the air and contaminate the fluid.

CAUTION: Never use any type of a petroleum-based fluid in the brake hydraulic system. Use of such type
fluids will result in seal damage of the vehicle brake hydraulic system causing a failure of the vehicle brake
system. Petroleum based fluids would be items such as engine oil, transmission fluid, power steering fluid,
etc.

OPERATION - AUTOMATIC TRANSMISSION FLUID

The automatic transmission fluid is selected based upon several qualities. The fluid must provide a high level of
protection for the internal components by providing a lubricating film between adjacent metal components. The fluid
must also be thermally stable so that it can maintain a consistent viscosity through a large temperature range. If the
viscosity stays constant through the temperature range of operation, transmission operation and shift feel will remain
consistent. Transmission fluid must also be a good conductor of heat. The fluid must absorb heat from the internal
transmission components and transfer that heat to the transmission case.

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