Jeep Grand Cherokee WJ. Manual - part 697

FLUID TYPES

DESCRIPTION - ENGINE COOLANT

ETHYLENE-GLYCOL MIXTURES

CAUTION: Richer antifreeze mixtures cannot be
measured with normal field equipment and can
cause problems associated with 100 percent ethyl-
ene-glycol.

The required ethylene-glycol (antifreeze) and water

mixture depends upon the climate and vehicle oper-
ating conditions. The recommended mixture of 50/50
ethylene-glycol and water will provide protection
against freezing to -37° C (-35° F). The antifreeze
concentration must always be a minimum of 44 per-
cent, year-round in all climates. If percentage is
lower than 44 percent, engine parts may be
eroded by cavitation, and cooling system com-
ponents may be severely damaged by corrosion.
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 freeze at a warmer temperature.
Also, a higher percentage of antifreeze can cause the
engine to overheat because the specific heat of anti-
freeze is lower than that of water.

Use of 100 percent ethylene-glycol will cause for-

mation of additive deposits in the system, as the cor-
rosion inhibitive additives in ethylene-glycol require
the presence of water to dissolve. The deposits act as
insulation, causing temperatures to rise to as high as
149° C (300)° F). This temperature is hot enough to
melt plastic and soften solder. The increased temper-
ature can result in engine detonation. In addition,
100 percent ethylene-glycol freezes at 22° C (-8° F ).

PROPYLENE-GLYCOL MIXTURES

It’s overall effective temperature range is smaller

than that of ethylene-glycol. The freeze point of 50/50
propylene-glycol and water is -32° C (-26° F). 5° C
higher than ethylene-glycol’s freeze point. The boiling
point (protection against summer boil-over) of propy-
lene-glycol is 125° C (257° F ) at 96.5 kPa (14 psi),
compared to 128° C (263 deg. F) for ethylene-glycol.
Use of propylene-glycol can result in boil-over or
freeze-up on a cooling system designed for ethylene-
glycol. Propylene glycol also has poorer heat transfer
characteristics

than

ethylene

glycol.

This

can

increase cylinder head temperatures under certain
conditions.

Propylene-glycol/ethylene-glycol

Mixtures

can

cause the destabilization of various corrosion inhibi-
tors, causing damage to the various cooling system
components. Also, once ethylene-glycol and propy-

lene-glycol based coolants are mixed in the vehicle,
conventional methods of determining freeze point will
not be accurate. Both the refractive index and spe-
cific gravity differ between ethylene glycol and propy-
lene glycol.

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 GOVERN-
MENT AGENCY FOR LOCATION OF COLLECTION
CENTER IN YOUR AREA.

API SERVICE GRADE CERTIFIED

Use an engine oil that is API Service Grade Certi-

fied. MOPAR

t provides engine oils that conform to

this service grade.

SAE VISCOSITY

An SAE viscosity grade is used to specify the vis-

cosity of engine oil. Use only engine oils with multi-
ple viscosities such as 5W-30 or 10W-30. These are
specified with a dual SAE viscosity grade which indi-
cates the cold-to-hot temperature viscosity range.
Select an engine oil that is best suited to your par-
ticular temperature range and variation (Fig. 1).

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.

Fig. 1 Temperature/Engine Oil Viscosity

LUBRICATION & MAINTENANCE

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2001 JEEP GRAND CHEROKEE

CONTAINER IDENTIFICATION

Standard engine oil identification notations have

been adopted to aid in the proper selection of engine
oil. The identifying notations are located on the label
of engine oil plastic bottles and the top of engine oil
cans (Fig. 2).

DESCRIPTION - ENGINE OIL

API SERVICE GRADE CERTIFIED

Use an engine oil that is API Service Grade Certi-

fied. MOPAR

t provides engine oils that conform to

this service grade.

SAE VISCOSITY

An SAE viscosity grade is used to specify the vis-

cosity of engine oil. Use only engine oils with multi-
ple viscosities such as 5W-30 or 10W-30. These oils
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 par-
ticular temperature range and variation (Fig. 3).

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 identifying notations are located on the label
of engine oil plastic bottles and the top of engine oil
cans (Fig. 4).

DESCRIPTION

A multi-purpose, hypoid gear lubricant which con-

forms to the following specifications should be used.
Mopar Hypoid Gear Lubricant conforms to all of
these specifications.

FRONT AXLE

• The lubricant should have MIL-L-2105C and

API GL 5 quality specifications.

• Lubricant is SAE 75W-140 SYNTHETIC gear

lubricant.

REAR AXLE

• The lubricant should have MIL-L-2105C and

API GL 5 quality specifications.

• Lubricant is a thermally stable SAE 80W-90

gear lubricant.

• Lubricant for axles intended for heavy-duty or

trailer tow use is SAE 75W-140 SYNTHETIC gear
lubricant.

NOTE: Trac-lok™ and Vari-lok™ equipped axles
require a friction modifier be added to the lubricant.

Fig. 2 Engine Oil Container Standard Notations

Fig. 3 Temperature/Engine Oil Viscosity

Fig. 4 API Symbol

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LUBRICATION & MAINTENANCE

FLUID TYPES (Continued)

2001 JEEP GRAND CHEROKEE

CAUTION: If axle is submerged in water, lubricant
must be replaced immediately to avoid possible
premature axle failure.

DESCRIPTION - TRANSFER CASE - NV242

Recommended lubricant for the NV242 transfer

case is Mopar

t ATF+4, type 9602 Automatic Trans-

mission Fluid.

DESCRIPTION - TRANSFER CASE - NV247

Mopar

t Transfer Case Lubricant (P/N 05016796) is

the only lubricant recommended for the NV247
transfer case.

DESCRIPTION - AUTOMATIC TRANSMISSION
FLUID

NOTE: Refer to the maintenance schedules in this
group for the recommended maintenance (fluid/filter
change) intervals for this transmission.

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

Mopar

t ATF +4, type 9602, Automatic Transmis-

sion

Fluid

the

recommended

fluid

for

DaimlerChrysler automatic transmissions.

Dexron II fluid IS NOT recommended. Clutch

chatter can result from the use of improper
fluid.

Mopar

t ATF +4, type 9602, Automatic Transmis-

sion 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. A dark brown/black fluid
accompanied with a burnt odor and/or deterioration
in shift quality may indicate fluid deterioration or
transmission component failure.

FLUID ADDITIVES

DaimlerChrysler strongly recommends against the

addition of any fluids to the transmission, other than
those automatic 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 sup-
ported to the satisfaction of DaimlerChrysler and
these additives must not be used. The use of trans-

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

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 con-
stant through the temperature range of operation,
transmission operation and shift feel will remain con-
sistent. Transmission fluid must also be a good con-
ductor of heat. The fluid must absorb heat from the
internal transmission components and transfer that
heat to the transmission case.

FLUID FILL/CHECK
LOCATIONS

INSPECTION - FLUID FILL/CHECK LOCATIONS

The fluid fill/check locations and lubrication points

are located in each applicable group.

MAINTENANCE SCHEDULES

SCHEDULE—A

1 000 KM

• Change engine oil.

• Change engine oil filter.

• Check all fluid levels.

• Check correct torque, intake manifold mounting

nuts.

• Check correct torque, exhaust manifold mount-

ing nuts.

• Check correct torque, turbocharger mounting

nuts.

• Check correct torque, water manifold bolts.

10 000 KM

• Change engine oil.

• Change engine oil filter.

20 000 KM

• Change engine oil.

• Change engine oil filter.

• Replace air filter element.

• Drive belt visual inspection.

LUBRICATION & MAINTENANCE

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FLUID TYPES (Continued)

2001 JEEP GRAND CHEROKEE

30 000 KM

• Change engine oil.

• Change engine oil filter.

40 000 KM

• Change engine oil.

• Change engine oil filter.

• Replace air filter element.

• Drive belt visual inspection.

• Replace fuel filter/water separator element.**

50 000 KM

• Change engine oil.

• Change engine oil filter.

60 000 KM

• Change engine oil.

• Change engine oil filter.

• Replace air filter element.

• Replace drive belt.

• Check engine smoke.

• Replace engine coolant.

70 000 KM

• Change engine oil.

• Change engine oil filter.

80 000 KM

• Change engine oil.

• Change engine oil filter.

• Replace air filter element.

• Drive belt visual inspection.

• Replace fuel filter/water separator element.**

90 000 KM

• Change engine oil.

• Change engine oil filter.

100 000 KM

• Change engine oil.

• Change engine oil filter.

• Replace air filter element.

• Drive belt visual inspection.

• Check glow plug operation.

EVERY 40 000 KM AFTER 80 000 KM

• Replace fuel filter/water separator element.**
**The fuel filter/water separator element should be

replaced once a year if the vehicle is driven less than
40 000 km annually or if power loss from fuel star-
vation is detected.

EVERY 10 000 KM AFTER 100 000 KM

• Change engine oil.

• Change engine oil filter.

EVERY 20 000 KM AFTER 100 000 KM

• Change engine oil.

• Change engine oil filter.

• Replace air filter element.

• Drive belt visual inspection.

• Check glow plug operation.

SCHEDULE—B

500 KM

• Check correct torque, intake manifold mounting

nuts.

• Check correct torque, exhaust manifold mount-

ing nuts.

• Check correct torque, turbocharger mounting

nuts.

• Check correct torque, water manifold bolts.

1 000 KM

• Change engine oil.

• Change engine oil filter.

• Check all fluid levels.

5 000 KM

• Change engine oil.

• Change engine oil filter.

10 000 KM

• Change engine oil.

• Change engine oil filter.

• Replace air filter element.

• Drive belt visual inspection.

15 000 KM

• Change engine oil.

• Change engine oil filter.

20 000 KM

• Change engine oil.

• Change engine oil filter.

• Replace air filter element.

• Drive belt visual inspection.

25 000 KM

• Change engine oil.

• Change engine oil filter.

30 000 KM

• Change engine oil.

• Change engine oil filter.

• Replace air filter element.

• Replace drive belt.

• Check engine smoke.

• Replace engine coolant.

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LUBRICATION & MAINTENANCE

MAINTENANCE SCHEDULES (Continued)

2001 JEEP GRAND CHEROKEE

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