Adding Coolant; SERVICING AND MAINTENANCE- Page 391

2018 Jeep Wrangler JK Owner Manual

Table of Contents

GETTING TO KNOW YOUR VEHICLE
GETTING TO KNOW YOUR INSTRUMENT PANEL
SAFETY
OCCUPANT RESTRAINT SYSTEMS
STARTING AND OPERATING
SERVICING AND MAINTENANCE
MULTIMEDIA
UCONNECT PHONE — IF EQUIPPED
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NOTE:

Mixing of engine coolant (antifreeze) other than speci-

fied Organic Additive Technology (OAT) engine coolant

(antifreeze), may result in engine damage and may

decrease corrosion protection. Organic Additive Tech-

nology (OAT) engine coolant is different and should not

be mixed with Hybrid Organic Additive Technology

(HOAT) engine coolant (antifreeze) or any “globally

compatible” 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 authorized dealer as

soon as possible.

Do not use water alone or alcohol-based engine coolant

(antifreeze) products. Do not use additional rust inhibi-

tors 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 propyl-

ene glycol-based engine coolant (antifreeze). Use of

propylene glycolbased engine coolant (antifreeze) is not

recommended.

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 (anti-

freeze) 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) 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.

8

SERVICING AND MAINTENANCE

389

Detailed Information for 2018 Jeep Wrangler JK Owner Manual

Lists of information found in 2018 Jeep Wrangler JK Owner Manual - Page 391

  • 32. 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.
  • Mixing of engine coolant (antifreeze) other than speci- fied Organic Additive Technology (OAT) engine coolant (antifreeze), may result in engine damage and may decrease corrosion protection.
  • Do not use water alone or alcohol-based engine coolant (antifreeze) products.
  • This vehicle has not been designed for use with propyl- ene glycol-based engine coolant (antifreeze).
  • Some vehicles require special tools to add coolant prop- erly.
  • 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.

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