Disposal Of Used Coolant; Coolant Level; Points To Remember- Page 393

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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Disposal Of Used Coolant

Used ethylene glycol-based coolant (antifreeze) is a regu-

lated substance requiring proper disposal. Check with your

local authorities to determine the disposal rules for your

community. To prevent ingestion by animals or children,

do not store ethylene glycol-based coolant in open contain-

ers 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 FCA Material Standard MS.90032 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 normally

a result of moisture from rain, snow, or high humidity

accumulating on the radiator and being vaporized when

the thermostat opens, allowing hot engine coolant (anti-

freeze) 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.

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.

8

SERVICING AND MAINTENANCE

391

Detailed Information for 2018 Jeep Wrangler JK Owner Manual

Lists of information found in 2018 Jeep Wrangler JK Owner Manual - Page 393

  • Do not overfill the coolant expansion bottle.
  • Check the coolant freeze point in the radiator and in the coolant expansion bottle.
  • If frequent engine coolant (antifreeze) additions are required, the cooling system should be pressure tested for leaks.

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