Or Years:; Or Kilometers:; Additional Maintenance- Page 220

2018 Jeep Wrangler JL User Guide

Table of Contents

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Mileage or time passed
(whichever comes first)

20,000

30,000

40,000

50,000

60,000

70,000

80,000

90,000

100,000

110,000

120,000

130,000

140,000

150,000

Or Years:

2

3

4

5

6

7

8

9

10

11

12

13

14

15

Or Kilometers:

32,000

48,000

64,000

80,000

96,000

112,000

128,000

144,000

160,000

176,000

192,000

208,000

224,000

240,000

Inspect transfer case fluid.

X

X

X

Additional Maintenance

Replace engine air cleaner filter.

X

X

X

X

X

Replace air conditioning/cabin air filter.

X

X

X

X

X

X

X

Replace Spark Plugs – 2.0L Engine**

X

X

Replace spark plugs – 3.6L Engine**

X

Flush and replace the engine, intercooler
(if equipped), battery (if equipped), and
Motor Generator Unit (MGU) (if equipped)
coolant at 10 years or 150,000 miles
(240,000 km) whichever comes first.

X

X

Change the manual transmission fluid if
using your vehicle for any of the following:
trailer towing, snow plowing, heavy loading,
taxi, police, delivery service (commercial
service), off-road, desert operation or more
than 50% of your driving is at sustained
high speeds during hot weather, above 90°F
(32°C).

X

X

X

X

X

Change transfer case fluid if using your
vehicle for any of the following: police, taxi,
fleet, or frequent trailer towing.

X

X

Inspect and replace PCV valve if necessary.

X

SERVICING

AND

MAINTENANCE

218

Detailed Information for 2018 Jeep Wrangler JL User Guide

Lists of information found in 2018 Jeep Wrangler JL User Guide - Page 220

  • 2.0L Engine** X X Replace spark plugs – 3.

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