Jeep 2014 Wrangler Owner's Manual page 645

Mileage or time passed
(whichever comes first)
Or Years:
Or Kilometers:
Inspect and replace PCV valve if
necessary.
Change front and rear axle fluid
if using your vehicle for police,
taxi, fleet, off-road or frequent
trailer towing.
** The spark plug change interval is mileage based only,
yearly intervals do not apply.
2 3 4 5 6
X
MAINTENANCE SCHEDULES 643
7 8 9 10 11
X
X
M
12 13 14 15
X
A
I
N
T
E
N
A
N
C
E
S
C
H
E
D
U
L
E
S
8