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Jeep Grand Cherokee WK. Manual - part 5

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
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.

COOLANT SELECTION AND ADDITIVES

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

Antifreeze/Coolant, 5 Year/100,000 Mile Formula (glycol base coolant with corrosion inhibitors called HOAT,

for Hybrid Organic Additive Technology) is recommended. This coolant offers the best engine cooling without cor-
rosion when mixed with 50% distilled water to obtain 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: Do not use coolant additives that are claimed to improve engine cooling.

AXLE

NOTE: DaimlerChrysler recommends using Mopar

lubricants or lubricants of equal quality

FRONT AXLE

•

200MM - Mopar

Synthetic Gear Lubricant 75W-140

REAR AXLE

•

213MM - Mopar

Synthetic Gear Lubricant 75W-140

NOTE: Vari-lok

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

TRANSFER CASE

Recommended lubricant for the NV140 transfer case is Mopar

ATF+4, Automatic Transmission Fluid. Recom-

mended lubricant for the NV245 transfer case is Mopar

NV245/247 Transfer Case Fluid.

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.

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LUBRICATION & MAINTENANCE

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

POWER STEERING FLUID

This system requires the use of hydraulic system/power steering fluid which meets Daimler Chrysler specification
MS-10838, such as Mopar part number 05142893AA, or equivalent, DO NOT MIX POWER STEERING FLUID
TYPES. Damage may result to the power steering pump and system if any other fluid is used, and DO NOT OVER-
FILL.

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.

FLUID CAPACITIES

SPECIFICATIONS - FLUID CAPACITIES

DESCRIPTION

SPECIFICATION

FUEL TANK

20 U.S. Gallons (76 Liters)****

Engine Oil - with Filter - 3.7L

4.7 L (5.0 qts.)

Engine Oil - with Filter - 4.7L

5.6 L (6.0 qts.)

Engine Oil - with Filter - 5.7L

6.6 L (7.0 qts.)

Cooling System - 3.7L

10.0 L (9 qts.)***

Cooling System - 4.7L

13.7 L (14.5 qts.)***

Cooling System - 5.7L

13.7 L (14.5 qts.)***

POWER STEERING SYSTEM

Power steering fluid capacities are dependent on engine/chassis options as well as steering gear/cooler options.

Depending on type and size of internal cooler, length and inside diameter of cooler lines, or use of an auxiliary

cooler, these capacities may vary. Refer to 19, Steering for proper fill and bleed procedures.

AUTOMATIC TRANSMISSION

Service Fill - 545RFE

2WD - 5.2 L (11 pts.)

4WD - 6.2 L (13 pts.)

Service Fill - NAG1

5.0 L (10.6 pts.)

O-haul Fill - 545RFE

13.33 L (28.0 pts.)

O-haul Fill - NAG1

7.7 L (16.3 pts)

Dry fill capacity Depending on type and size of internal cooler, length and inside diameter of cooler lines, or use of

an auxiliary cooler, these figures may vary. (Refer to appropriate 21 - TRANSMISSION/AUTOMATIC/FLUID -

STANDARD PROCEDURE).

TRANSFER CASE

NV140

0.65L (1.4 pts.)

NV245

1.8L (3.8 pts.)

LUBRICATION & MAINTENANCE

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DESCRIPTION

SPECIFICATION

FRONT AXLE ± 0.3 L (2 oz.)

C200F

1.7 L (57.5 oz.)

C200FE

1.7 L (57.5 oz.)

REAR AXLE ± 0.3 L (2 oz.)

C213R

2.07 L (70 oz.)*

C213RE

2.24L (75.5 oz.)

*Vari-Lok, add 0.07 L (2.5 oz.) of Friction Modifier.

*** Includes 0.9L (1.0 qts.) for coolant reservoir.

****Nominal refill capacities are shown. A variation may be observed from vehicle to vehicle due to manufacturing
tolerance and refill procedure.

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

DESCRIPTION

MAINTENANCE SCHEDULES

There are two maintenance schedules that show the required service for your vehicle.

First is Schedule

(

. It is for vehicles that are operated under the conditions that are listed below and at the begin-

ning of the schedule.

•

Day or night temperatures are below 32°F (0°C)

•

Stop and go driving

•

Excessive 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

•

If equipped for and operated with E-85 (ethanol) fuel.

NOTE: Most vehicles are operated under the conditions listed for Schedule “B.”

NOTE: If ANY of these apply to you, change your engine oil every 3,000 miles (5 000 km) or 3 months,
whichever comes first, and follow the maintenance recommendations in “Maintenance Schedule B.”

NOTE: If ANY of these apply to you then flush and replace your engine coolant every 102,000 miles (163 000
km) or 60 months, whichever comes first, and follow “Schedule B” of the “Maintenance Schedules” section
of this manual.

Second is Schedule “A”. It is for vehicles that are not operated under any of the conditions listed under Schedule
“B.”

Use the schedule that best describes your driving conditions. 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.

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LUBRICATION & MAINTENANCE

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 accuracy of the oil level reading. Add oil only when the level is
at or below the ADD or MIN mark.

•

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 coolant reservoir, brake master cylinder, and transmission, 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. Examine
threaded fasteners for looseness.

Schedule “B”

Follow this schedule 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

•

Excessive 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

•

If equipped for and operated with E-85 (ethanol) fuel.

NOTE: If ANY of these apply to you, change your engine oil every 3,000 miles (5 000 km) or 3 months,
whichever comes first, and follow the maintenance recommendations in “Maintenance Schedule B.”

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, if not
replaced at 3 months.

Rotate the tires.

Inspect the engine air cleaner filter, replace if
necessary.

Lubricate the upper knuckle ball stud at steering &
suspension ball joints.

Drain and refill the front and rear axles.

Inspect the brake linings.

Clean and lubricate the brake caliper pins.

LUBRICATION & MAINTENANCE

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