Jeep Compass Operating Information Manual page 190

CAUTION!
• Mixing of engine coolant (antifreeze) other
than specified Organic Additive Technology
(OAT) engine coolant (antifreeze), may re-
sult in engine damage and may decrease
corrosion protection. Organic Additive
Technology (OAT) engine coolant is differ-
ent and should not be mixed with Hybrid
Organic Additive Technology (HOAT) en-
gine coolant (antifreeze) or any "globally
compatible" coolant (antifreeze). If a non-
OAT engine coolant (antifreeze) is intro-
duced into the cooling system in an emer-
gency, the cooling system will need to be
drained, flushed, and refilled with fresh
OAT coolant (conforming to MS.90032), by
an authorized dealer as soon as possible.
• 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 cool-
ant (antifreeze). Use of propylene glycol-
based engine coolant (antifreeze) is not
recommended.
Adding Coolant
Your vehicle has been built with an improved
engine coolant (OAT coolant conforming to
MS.90032) that allows extended maintenance
intervals. This engine coolant (antifreeze) can
be used up to ten years or 150,000 miles
(240,000 km) before replacement. To prevent
reducing this extended maintenance period, it is
important that you use the same engine coolant
(OAT coolant conforming to MS.90032) through-
out the life of your vehicle.
Please review these recommendations for using
Organic Additive Technology (OAT) engine cool-
ant (antifreeze) that meets the requirements of
FCA Material Standard MS.90032. When add-
ing 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 Material Standard
MS.90032.
• Mix a minimum solution of 50% OAT engine
coolant that meets the requirements of FCA
Material Standard MS.90032 and distilled wa-
ter. Use higher concentrations (not to exceed
70%) if temperatures below −34°F (−37°C)
are anticipated. Please contact your autho-
rized dealer for assistance.
• Use only high purity water such as distilled or
deionized 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 sys-
tems properly could lead to severe inter-
nal 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 recommended and can result in cool-
ing system damage. If HOAT and OAT
coolant are mixed in an emergency, have a
authorized dealer drain, flush, and refill
with OAT coolant (conforming
MS.90032) 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.
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