engine coolant JEEP GRAND CHEROKEE 2015 WK2 / 4.G User Guide

important that you use the same engine coolant (OAT
coolant conforming to MS-12106) throughout the life of
your vehicle.
Please review these recommendations for using Organic
Additive Technology (OAT) engine coolant (antifreeze)
that meets the requirements of Chrysler Material Stan-
dard MS-12106. 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 Chrysler
Material Standard MS-12106.
•Mix a minimum solution of 50% OAT engine coolant
that meets the requirements of Chrysler Material Stan-
dard MS-12106 and distilled water. Use higher concen-
trations (not to exceed 70%) if temperatures below
−34° F (−37° C) are anticipated.
•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.
Please note that it is the owner’s responsibility to main-
tain the proper level of protection against freezing ac-
cording to the temperatures occurring in the area where
the vehicle is operated.
NOTE:
•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.
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MAINTAINING YOUR VEHICLE 635

•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-12106) as soon as
possible.
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.
•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
636 MAINTAINING YOUR VEHICLE

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.
Coolant Level
The coolant bottle provides a quick visual method for
determining that the coolant level is adequate. With the
engine OFF and cold, 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/coolant pressure cap
unless checking for engine coolant (antifreeze) freeze
point or replacing coolant. 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, only OAT coolant that meets the
requirements of Chrysler Material Standard MS-12106
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.
7
MAINTAINING YOUR VEHICLE 637

•Check the coolant freeze point in the radiator and in the
coolant expansion bottle. If engine coolant (antifreeze)
needs to be added, the contents of the coolant expansion
bottle must also be protected against freezing.
•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-12106) 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
(Continued)
638 MAINTAINING YOUR VEHICLE

FLUID CAPACITIES
U.S.Metric
Fuel (Approximate)
3.6L and 5.7L Engines25 Gallons94 Liters
Engine Oil With Filter
3.6L Engine (SAE 5W-20, API Certified)6 Quarts5.6 Liters
5.7L Engine (SAE 5W-20, API Certified)7 Quarts6.6 Liters
Cooling System*
3.6L Engine (MOPAR® Antifreeze/Engine Coolant 10 Year/
150,000 Mile Formula or equivalent)
10.4 Quarts9.9 Liters
5.7 Liter Engine (MOPAR® Antifreeze/Engine Coolant 10 Year/
150,000 Mile Formula or equivalent) – Without Trailer Tow Package
15.4 Quarts14.6 Liters
5.7 Liter Engine (MOPAR® Antifreeze/Engine Coolant 10 Year/
150,000 Mile Formula or equivalent) – With Trailer Tow Package
16 Quarts15.2 Liters
* Includes heater and coolant recovery bottle filled to MAX level.
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MAINTAINING YOUR VEHICLE 669

FLUIDS, LUBRICANTS AND GENUINE PARTS
Engine
ComponentFluid, Lubricant, or Genuine Part
Engine CoolantWe recommend you use MOPAR® Antifreeze/Coolant 10 Year/150,000 Mile
Formula OAT (Organic Additive Technology).
Engine Oil – 3.6L Engine We recommend you use API Certified SAE 5W-20 Engine Oil, meeting the
requirements of Chrysler Material Standard MS-6395 such as MOPAR®, Penn-
zoil®, and Shell Helix®. Refer to your engine oil filler cap for correct SAE grade.
Engine Oil – 5.7L Engine We recommend you use API Certified SAE 5W-20 Engine Oil, meeting the
requirements of Chrysler Material Standard MS-6395 such as MOPAR®, Penn-
zoil®, and Shell Helix®. Refer to your engine oil filler cap for correct SAE grade.
Engine Oil FilterWe recommend you use MOPAR® Engine Oil Filter or equivalent.
Spark Plugs – 3.6L Engine We recommend you use MOPAR® Spark Plugs.
Spark Plugs – 5.7L Engine We recommend you use MOPAR® Spark Plugs.
Fuel Selection – 3.6L Engine 87 Octane
Fuel Selection – 5.7L Engine 87 Octane Acceptable - 89 Octane Recommended
670 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-12106), by an
authorized 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 671

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 ser-
vice 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 “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).
Your authorized dealer will reset the oil change indicator
message after completing the scheduled oil change.
NOTE:Under no circumstances should oil change inter-
vals exceed 10,000 miles (16,000 km) or twelve months,
whichever comes first.
Severe Duty All Models
Change Engine Oil at 4000 miles (6,500 km) if the vehicle
is operated in a dusty and off road environment. 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 and power steering, and fill as needed.
•Check function of all interior and exterior lights
8
MAINTENANCE
SCHEDULES
676 MAINTENANCE SCHEDULES

Mileage or time passed
(whichever comes first)
20,00030,00040,00050,00060,00070,00080,00090,000100,000110,000120,000130,000140,000150,000
Or Years: 2 3 4 5 6 7 8 9 10 11 12 13 14 15
Or Kilometers:
32,00048,00064,00080,00096,000112,000128,000144,000160,000176,000192,000208,000224,000240,000
Inspect transfer case fluid.XXXX
Additional Maintenance
Replace engine air filter.XXXXX
Replace the air conditioning filter. X X XXXXX
Replace spark plugs(3.6L engine).**X
Replace spark plugs(5.7L engine).**X
Flush and replace the enginecoolant at 10 years or150,000 miles (240,000 km)whichever comes first.
XX
8
MAINTENANCE
SCHEDULES
MAINTENANCE SCHEDULES 679

About Your Brakes........................472
ABS (Anti-Lock Brake System)................473
Adaptive Cruise Control (ACC) (Cruise Control) . . .192
Adding Engine Coolant (Antifreeze)............634
Adding Fuel.............................536
Additives, Fuel...........................530
Air bag . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .67
Air Bag
Advance Front Air Bag....................68
Air Bag Components.....................67
Air bag Operation.......................70
Air Bag Warning Light....................79
Enhanced Accident Response................78
Event Data Recorder (EDR).................82
Front Air Bag . . . . . . . . . . . . . . . . . . . . . . . . . . .67
If A Deployment Occurs...................77
Knee Impact Bolsters.....................71
Maintaining Your Air Bag System............81
Side Air Bags...........................72
Transporting Pets.......................107
Air bag Deployment........................67
Air bag Light.............................79
Air bag Maintenance........................81
Air Cleaner, Engine (Engine Air Cleaner Filter) . . . .610
Air Conditioner Maintenance.................616
Air Conditioning Filter.....................395
Air Conditioning, Operating Tips..............394
Air Conditioning Refrigerant.................616
Air Conditioning System....................392
Air Pressure, Tires.........................506
Air Suspension...........................450
Alarm
Arm The System........................19
Tamper Alert...........................21
Alarm, Panic.............................24
Alarm (Security Alarm)......................19
Alterations/Modifications, Vehicle...............9
Antifreeze (Engine Coolant)..................633
694 INDEX