Jeep Grand Cherokee, Operating Information Manual

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Refer to the “Maintenance Schedule” for the
proper maintenance intervals.
Selection Of Engine Coolant
Use only the manufacturer’s recommended en-
gine coolant (antifreeze). Refer to “Fluids, Lu-
bricants, and Genuine Parts” in “Maintaining
Your Vehicle” for further information.
CAUTION!
•
Mixing of engine coolant (antifreeze) other
than the specified HOAT engine coolant
(antifreeze) may result in decreased corro-
sion protection and engine damage. If a
non-HOAT engine coolant (antifreeze) is
introduced into the cooling system in an
emergency, it should be replaced with the
specified engine coolant (antifreeze) 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 engine coolant (antifreeze) 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 (antifreeze) is not recom-
mended.
Adding Engine Coolant
Your vehicle has been built with an improved
engine coolant (antifreeze) that allows ex-
tended maintenance intervals. This engine
coolant (antifreeze) can be used up to five
years or 105,000 miles (168 000 km) before
replacement. To prevent reducing this ex-
tended maintenance period, it is important that
you use the same engine coolant (antifreeze)
throughout the life of your vehicle. Please re-
view these recommendations for using Hybrid
Organic Additive Technology (HOAT) engine
coolant (antifreeze).
When adding engine coolant (antifreeze):
•
The manufacturer recommends using
MOPAR
姞
Antifreeze/ Coolant 5
Year/100,000 Mile Formula HOAT (Hybrid
Organic Additive Technology) or equivalent.
•
Mix a minimum solution of 50% HOAT engine
coolant (antifreeze) and distilled water. Use
higher concentrations (not to exceed 70%) if
temperatures below -34°F (-37°C) are antici-
pated.
•
Use only high purity water such as distilled
or deionized water when mixing the water/
antifreeze (coolant) 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 maintain the proper level of protection
against freezing according to the temperatures
occurring in the area where the vehicle is
operated.
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