engine coolant JEEP WRANGLER 2016 JK / 3.G User Guide

that meets the requirements of FCA Material Standard
MS.90032. When adding engine coolant (antifreeze):
•We recommend using MOPAR Antifreeze/Coolant 10
Year/150,000 Mile Formula OAT (Organic Additive
Technology) that meets the requirements of FCA Ma-
terial Standard MS.90032.
• Mix a minimum solution of 50% OAT engine coolant
that meets the requirements of FCA Material Standard
MS.90032 and distilled water. Use higher concentra-
tions (not to exceed 70%) if temperatures below 34°F
(37°C) are anticipated. Please contact your authorized
dealer for assistance.
• Use only high purity water such as distilled or deion-
ized water when mixing the water/engine coolant
(antifreeze) solution. The use of lower quality water
will reduce the amount of corrosion protection in the
engine cooling system. NOTE:
•
It is the owner’s responsibility to maintain the proper
level of protection against freezing according to the
temperatures occurring in the area where the vehicle is
operated.
• Some vehicles require special tools to add coolant
properly. Failure to fill these systems properly could
lead to severe internal engine damage. If any coolant is
needed to be added to the system, please contact your
local authorized dealer.
• Mixing engine coolant (antifreeze) types is not recom-
mended and can result in cooling system damage. If
HOAT and OAT coolant are mixed in an emergency,
have a authorized dealer drain, flush, and refill with
OAT coolant (conforming to MS.90032) as soon as
possible.
7
MAINTAINING YOUR VEHICLE 627

Cooling System Pressure Cap
The cap must be fully tightened to prevent loss of engine
coolant (antifreeze), and to ensure that engine coolant
(antifreeze) will return to the radiator from the coolant
recovery tank.
The cap should be inspected and cleaned if there is any
accumulation of foreign material on the sealing surfaces.
WARNING!
•Do not open hot engine cooling system. Never add
engine coolant (antifreeze) when the engine is
overheated. Do not loosen or remove the cap to cool
an overheated engine. Heat causes pressure to
build up in the cooling system. To prevent scalding
or injury, do not remove the pressure cap while the
system is hot or under pressure.
(Continued)
WARNING! (Continued)
•Do not use a pressure cap other than the one
specified for your vehicle. Personal injury or en-
gine damage may result.
Disposal Of Used Engine Coolant
Used ethylene glycol-based engine coolant (antifreeze) is
a regulated substance requiring proper disposal. Check
with your local authorities to determine the disposal
rules for your community. To prevent ingestion by ani-
mals or children, do not store ethylene glycol-based
engine coolant in open containers or allow it to remain in
puddles on the ground. If ingested by a child or pet, seek
emergency assistance immediately. Clean up any ground
spills immediately.
628 MAINTAINING YOUR VEHICLE

Engine Coolant Level
The coolant bottle provides a quick visual method for
determining that the coolant level is adequate. With the
engine idling, and warm to normal operating tempera-
ture, the level of the engine coolant (antifreeze) in the
bottle should be between the ranges indicated on the
bottle.
The radiator normally remains completely full, so there is
no need to remove the radiator cap unless checking for
engine coolant (antifreeze) freeze point or replacing en-
gine coolant (antifreeze). Advise your service attendant
of this. As long as the engine operating temperature is
satisfactory, the coolant bottle need only be checked once
a month.
When additional engine coolant (antifreeze) is needed to
maintain the proper level, it should be added to the
coolant 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 engine
coolant (antifreeze) 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 expansion bottle.
• Check the coolant freeze point in the radiator and in
the coolant expansion bottle. If engine coolant (anti-
freeze) needs to be added, the contents of the coolant
expansion bottle must also be protected against freez-
ing.
7
MAINTAINING YOUR VEHICLE 629

•If frequent engine coolant (antifreeze) additions are
required, the cooling system should be pressure tested
for leaks.
• Maintain engine coolant (antifreeze) concentration at a
minimum of 50% OAT coolant (conforming to
MS.90032) and distilled water for proper corrosion
protection of your engine which contains aluminum
components.
• Make sure that the coolant expansion bottle overflow
hoses are not kinked or obstructed.
• Keep the front of the radiator clean. 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
ONLY the correct type thermostat. Other designs may result in unsatisfactory engine coolant (antifreeze)
performance, poor gas mileage, and increased emis-
sions.
Brake System
In order to assure brake system performance, all brake
system components should be inspected periodically.
Refer to the “Maintenance Schedule” for the proper
maintenance intervals.
WARNING!
Riding the brakes can lead to brake failure and
possibly a collision. Driving with your foot resting or
riding on the brake pedal can result in abnormally
high brake temperatures, excessive lining wear, and
possible brake damage. You would not have your full
braking capacity in an emergency.
630 MAINTAINING YOUR VEHICLE

FLUID CAPACITIES
U.S.Metric
Fuel (Approximate)
Two Door Models 18.6 Gallons70 Liters
Four Door Models 22.5 Gallons85 Liters
Engine Oil with Filter
3.6L Engine 6 Quarts5.6 Liters
Cooling System *
3.6L Engine (MOPAR Antifreeze/
Engine Coolant 10 Year/150,000
Mile Formula or equivalent) 10.5 Quarts
9.9 Liters
* Includes coolant recovery bottle filled to MAX level.
7
MAINTAINING YOUR VEHICLE 659

FLUIDS, LUBRICANTS, AND GENUINE PARTS
Engine
ComponentFluid, Lubricant, or Genuine Part
Engine Coolant We recommend you use MOPAR Antifreeze/Coolant 10 Year/150,000 Mile
Formula OAT (Organic Additive Technology) or equivalent meeting the
requirements of FCA Material Standard MS.90032.
Engine Oil We recommend you use API Certified SAE 5W-20 Engine Oil, meeting the
requirements of FCA Material Standard MS-6395 such as MOPAR, Pennzoil,
and Shell Helix. Refer to your engine oil filler cap for correct SAE grade.
Engine Oil Filter We recommend you use MOPAR Engine Oil Filter or equivalent.
Spark Plugs We recommend you use MOPAR Spark Plugs.
Fuel Selection 87 Octane, 0-15% Ethanol.
660 MAINTAINING YOUR VEHICLE

CAUTION!
•Mixing of engine coolant (antifreeze) other than
specified Organic Additive Technology (OAT) en-
gine coolant (antifreeze), may result in engine
damage and may decrease corrosion protection.
Organic Additive Technology (OAT) engine cool-
ant is different and should not be mixed with
Hybrid Organic Additive Technology (HOAT) en-
gine coolant (antifreeze) or any “globally compat-
ible” coolant (antifreeze). If a non-OAT engine
coolant (antifreeze) is introduced into the cooling
system in an emergency, the cooling system will
need to be drained, flushed, and refilled with fresh
OAT coolant (conforming to MS.90032), by an au-
thorized dealer as soon as possible.
(Continued)
CAUTION! (Continued)
•Do not use water alone or alcohol-based engine
coolant (antifreeze) products. Do not use additional
rust inhibitors or antirust products, as they may not
be compatible with the radiator engine coolant and
may plug the radiator.
• This vehicle has not been designed for use with
propylene glycol-based engine coolant (antifreeze).
Use of propylene glycol-based engine coolant (an-
tifreeze) is not recommended.
7
MAINTAINING YOUR VEHICLE 661

NOTE:Under no circumstances should oil change inter-
vals exceed 10,000 miles (16,000 km), twelve months or
350 hours of engine run time, whichever comes first. The
350 hours of engine run or idle time is generally only a
concern for fleet customers.
Severe Duty All Models
Change Engine Oil at 4,000 miles (6,500 km) if the vehicle
is operated in a dusty and off road environment or is
operated predominately at idle or only very low engine
RPM’s. This type of vehicle use is considered Severe
Duty. 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 automatic trans-
mission, and fill as needed
• Check function of all interior and exterior lights
8
MAINTENANCE SCHEDULES 665

Mileage or time passed (whichevercomes 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
150,000
Or 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
240,000
Replace air conditioning/cabin air filter. X X X X XXX
Replace spark plugs ** X
Flush and replace the engine coolant at
10 years or 150,000 miles (240,000 km)
whichever comes first. XX
Change automatic transmission fluid
and filter if using your vehicle for any of
the following: police, taxi, fleet, or fre-
quent trailer towing. XX
Change the automatic transmission fluid
and filter. X
668 MAINTENANCE SCHEDULES

About Your Brakes....................... .480
Adding Engine Coolant (Antifreeze) ............626
Adding Fuel ............................ .539
Additives, Fuel .......................... .537
AirBag.................................63 Advance Front Air Bag ....................65
Air Bag Operation .......................66
Air Bag Warning Light ....................71
Enhanced Accident Response ................71
Event Data Recorder (EDR) .................74
FrontAirBag...........................63
If A Deployment Occurs ...................69
Knee Impact Bolsters .....................67
Maintaining Your Air Bag System ............73
Air Bag Deployment ........................63
Air Bag Light ..................... .71, 101, 320
Air Bag Maintenance .......................73
Air Cleaner, Engine (Engine Air Cleaner Filter) . . . .603
Air Conditioner Maintenance .................610Air Conditioning
......................... .415
Air Conditioning Controls ...................415
Air Conditioning Filter ..................427, 612
Air Conditioning, Operating Tips ...........425, 428
Air Conditioning Refrigerant ..............610, 611
Air Conditioning System .............415, 419, 610
Air Pressure, Tires ........................ .510
Alarm (Security Alarm) ..................20, 322
Alterations/Modifications, Vehicle ...............9
Antenna, Satellite Radio .................380, 401
Antifreeze (Engine Coolant) ...............625, 659
Disposal ............................. .628
Anti-Lock Brake System (ABS) ................482
Anti-Lock Warning Light ....................325
Appearance Care ........................ .638
Arming System (Security Alarm) ...............20
Assistance Towing ........................ .129
Assist, Hill Start ......................... .484
Auto Down Power Windows ..................44
682 INDEX