Jeep Wrangler Owner's Manual page 417

M
416 MAINTENANCE SCHEDULES
A
I
N
T
E
N Maintenance Items
A
Inspect the front suspension, tie rod ends and boot
N
seals, replace if necessary.
C
E
Replace the engine air cleaner filter.
Check the PCV valve, replace if necessary. Perform
S
the first inspection at 60,000 miles (100 000 km) or 60
C
H
months.
E
Change the manual transmission fluid if using your
D
vehicle for any of the following: trailer towing, snow
U
L
plowing, heavy loading, taxi, police, delivery service
E
(commercial service), off-road, desert operation or
S
more then 50% of your driving is at sustained high
8
speeds during hot weather, above 90°F (32°C).
Inspect the transfer case fluid.
Perform Maintenance Every (Where time and mileage
are listed, follow the interval that occurs first.)
Miles Kilometers
24,000 40 000
30,000 50 000
30,000 50 000
30,000 50 000
30,000 50 000
or Months
24
30
30
30
30