2013 JEEP WRANGLER UNLIMITED engine

Automatic Transmission – If Equipped
Selection Of Lubricant
It is important to use the proper transmission fluid to
ensure optimum transmission performance and life. Use
only the manufacturer’s recommended transmission
fluid. Refer to “Fluids, Lubricants, and Genuine Parts” in
“Maintaining Your Vehicle” for further fluid specifica-
tions. It is important to maintain the transmission fluid at
the correct level using the recommended fluid.
NOTE: No chemical flushes should be used in any trans-
mission; only the approved lubricant should be used.
CAUTION!Using a transmission fluid other than the manufac-
turer’s recommended fluid may cause deterioration
in transmission shift quality and/or torque converter (Continued) CAUTION! (Continued)shudder. Using a transmission fluid other than the
manufacturer’s recommended fluid will require
more frequent fluid and filter changes. Refer to
“Fluids, Lubricants, and Genuine Parts” in “Main-
taining Your Vehicle” for further information.
Special Additives
Automatic Transmission Fluid (ATF) is an engineered
product and its performance may be impaired by supple-
mental additives. Therefore, do not add any fluid addi-
tives to the transmission. The only exception to this
policy is the use of special dyes for diagnosing fluid
leaks. Avoid using transmission sealers as they may
adversely affect seals.
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CAUTION!• Using a transmission fluid other than the manufac-
turer’s recommended fluid may cause deterioration
in transmission shift quality and/or torque con-
verter shudder. Using a transmission fluid other
than that recommended by the manufacturer, and
will require more frequent fluid and filter changes.
Refer to “Fluids, Lubricants, and Genuine Parts” in
“Maintaining Your Vehicle” for further fluid speci-
fication.
• If a transmission fluid leak occurs, visit your au-
thorized dealer immediately. Severe transmission
damage may occur. Your authorized dealer has the
proper tools to adjust the fluid level accurately. Fluid Level Check
It is best to check the fluid level when the transmission is
at normal operating temperature (approximately 180° F
(82° C). This occurs after at least 15 miles (25 km) of
driving. At normal operating temperature, the fluid
cannot be held comfortably between the fingertips.
Use the following procedure to check the transmission
fluid level properly:
1. Park the vehicle on level ground.
2. Run the engine at idle speed and normal operating
temperature.
3. Fully apply the parking brake, and press the brake
pedal.586 MAINTAINING YOUR VEHICLE

regularly. Use MOPAR  Soft Top Zipper Cleaner and
Lubricant or equivalent to ease zipper operation.
Before applying, make sure the zipper teeth are clear
of sand, mud, and other materials. Clean both sides of
the zipper, not just one side. Rinse both zipper halves
with fresh water and allow to dry. Aggressively work
the MOPAR  Soft Top Zipper Cleaner and Lubricant
or equivalent into the zipper teeth. If a stuck zipper
slide is experienced, work the MOPAR  Soft Top
Zipper Cleaner and Lubricant or equivalent into the
zipper slide. Several applications may be required
before the zipper comes free.
6. Never paste stickers, gummed labels or any tape to the
windows. Adhesives are hard to remove and may
damage the windows. FUSES
Totally Integrated Power Module
The Totally Integrated Power Module is located in the
engine compartment near the battery. This center contains
cartridge fuses, mini fuses and relays. A label that identifies
each component is printed on the inside of the cover.
Totally Integrated Power Module598 MAINTAINING YOUR VEHICLE

FLUID CAPACITIES
U.S. Metric
Fuel (Approximate) — Two Door Models 18.6 Gallons 70 Liters
Fuel (Approximate) — Four Door Models 22.5 Gallons 85 Liters
Engine Oil with Filter
3.6L Engine 6 Quarts 5.6 Liters
Cooling System *
3.6L Engine (MOPAR  Antifreeze/Engine Coolant
10 Year/152,000 Mile Formula or equivalent) 10.5 Quarts 9.9 Liters
* Includes coolant recovery bottle filled to MAX level. 610 MAINTAINING YOUR VEHICLE

FLUIDS, LUBRICANTS AND GENUINE PARTS
Engine
Component Fluid, Lubricant, or Genuine Part
Engine Coolant MOPAR  Antifreeze/Coolant 10 Year/150,000 Mile Formula OAT (Organic
Additive Technology) or equivalent meeting the requirements of Chrysler
Material Standard MS-12106.
Engine Oil Use API Certified SAE 5W-20 Engine Oil, meeting the requirements of
Chrysler Material Standard MS-6395. Refer to your engine oil filler cap for
correct SAE grade.
Engine Oil Filter MOPAR  Engine Oil Filter or equivalent.
Spark Plugs RER8ZWYCB4 (Gap 0.043 in [1.1 mm])
Fuel Selection 87 Octane
7 MAINTAINING YOUR VEHICLE 611

MAINTENANCE SCHEDULE
Your vehicle is equipped with an automatic oil change
indicator system. The oil change indicator system will
remind you that it is time to take your vehicle in for
scheduled maintenance.
Based on engine operation conditions, the oil change
indicator message will illuminate. This means that service
is required for your vehicle. Operating conditions such as
frequent short-trips, trailer tow, extremely hot or cold
ambient temperatures, and E85 fuel usage will influence
when the “Change Oil” or “Oil Change Required” message
is displayed. Severe Operating Conditions can cause the
change oil message to illuminate as early as 3,500 miles
(5,600 km) since last reset. Have your vehicle serviced as
soon as possible, within the next 500 miles (805 km).
On Electronic Vehicle Information Center (EVIC) equipped
vehicles, “Oil Change Required” will be displayed in the
EVIC and a single chime will sound, indicating that an oil
change is necessary. On Non-EVIC equipped vehicles, “Change Oil” will flash
in the instrument cluster odometer and a single chime
will sound, indicating that an oil change is necessary.
Your authorized dealer will reset the oil change indicator
message after completing the scheduled oil change. If a
scheduled oil change is performed by someone other than
your authorized dealer, the message can be reset by refer-
ring to the steps described under “Electronic Vehicle Infor-
mation Center (EVIC)/Oil Change Required” in “Under-
standing Your Instrument Panel” or under “Instrument
Cluster Description/Odometer/Trip Odometer” in “Under-
standing Your Instrument Panel” for further information.
NOTE: Under no circumstances should oil change inter-
vals exceed 10,000 miles (16,000 km) or twelve months,
whichever comes first.
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Once A Month Or Before A Long Trip:
• Check engine oil level
• Check windshield washer fluid level
• Check the tire inflation pressures and look for unusual
wear or damage
• Check the fluid levels of the coolant reservoir, brake
master cylinder, power steering and transmission as
needed
• Check function of all interior and exterior lights
Required Maintenance Intervals .
Refer to the maintenance schedules on the following
page for the required maintenance intervals. At Every Oil Change Interval As Indicated By Oil
Change Indicator System:
• Change oil and filter
• Rotate the tires. Rotate at the first sign of irregu-
lar wear, even if it occurs before the oil indicator
system turns on.
• Inspect battery and clean and tighten terminals as
required
• Inspect automatic transmission fluid if equipped
with dipstick
• Inspect brake pads, shoes, rotors, drums, hoses
and park brake
• Inspect engine cooling system protection and
hoses
• Inspect exhaust system
• Inspect engine air cleaner if using in dusty or
off-road conditions
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Mileage or time passed
(whichever comes first)
20,000
30,000
40,000
50,000
60,000
70,000
80,000
90,000
100,000
110,000
120,000
130,000
140,000
150,000Or Years: 2 3 4 5 6 7 8 9 10 11 12 13 14 15
Or Kilometers:
32,000
48,000
64,000
80,000
96,000
112,000
128,000
144,000
160,000
176,000
192,000
208,000
224,000
240,000Inspect the brake linings, parking
brake function. XXX X X X X
Inspect transfer case fluid. X X X
Additional Maintenance
Replace engine air cleaner filter. X X X X X
Replace spark plugs ** X
Replace the ignition cables. X
Flush and replace the engine
coolant at 10 years or
150,000 miles (240,000 km)
whichever comes first. XX
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