Fluid, Lubricant, or Genuine Part; Mixing of engine coolant (antifreeze) other than; specified Organic Additive Technology (OAT) en-- Page 439

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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Component

Fluid, Lubricant, or Genuine Part

Engine Oil

We recommend you use API Certified SAE 5W-20 Engine

Oil, meeting the requirements of FCA Material Standard

MS-6395 such as Mopar, Pennzoil, and Shell Helix. Refer to

your engine oil filler cap for correct SAE grade.

Engine Oil Filter

We recommend you use Mopar Engine Oil Filter or equiva-

lent.

Spark Plugs

We recommend you use Mopar Spark Plugs.

Fuel Selection

87 Octane, 0-15% Ethanol.

CAUTION!

Mixing of engine coolant (antifreeze) other than
specified Organic Additive Technology (OAT) en-
gine coolant (antifreeze), may result in engine dam-
age 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) engine coolant (anti-
freeze) or any “globally compatible” coolant (anti-
freeze). 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,

(Continued)

CAUTION!

(Continued)

and refilled with fresh OAT coolant (conforming to
MS.90032), by an authorized dealer as soon as pos-
sible.

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 coolant (antifreeze).
Use of propylene glycol-based engine coolant (anti-
freeze) is not recommended.

9

TECHNICAL SPECIFICATIONS

437

Detailed Information for 2018 Jeep Wrangler JK Owner Manual

Lists of information found in 2018 Jeep Wrangler JK Owner Manual - Page 439

  • Mixing of engine coolant (antifreeze) other than specified Organic Additive Technology (OAT) en- gine coolant (antifreeze), may result in engine dam- age 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 propylene glycol-based engine coolant (antifreeze).

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