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466 SERVICING AND MAINTENANCE
• This vehicle has not been designed for use with propylene
glycol-based engine coolant (antifreeze). Use of propylene
glycolbased engine coolant (antifreeze) is not recom-
mended.
• Some vehicles require special tools to add coolant prop-
erly. 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 an authorized
dealer.
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 mainte-
nance period, it is important that you use the same engine
coolant (OAT coolant conforming to MS.90032) throughout
the life of your vehicle.
Please review these recommendations for using Organic
Additive Technology (OAT) engine coolant (antifreeze) 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 (240,000 km) 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 water. Use higher concentrations
(not to exceed 70%) if temperatures below −34°F (−37°C)
are anticipated. Please contact an authorized 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 tempera-
tures occurring in the area where the vehicle is operated.
• Some vehicles require special tools to add coolant prop-
erly. 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 a local authorized
dealer.
2020_JEEP_CHEROKEE_OM_USA=GUID-B9F8E23F-10A5-4D6C-A585-BCFF41CCB747=1=en=.book Page 466
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