Miles
(x
1,000)*
7.5
15
22.5
30
37.5
45
52.5
6
0
6
7.5
75
Kilometers
(x
1,000)*
12
24
36
48
60
72
84
96
108
120
Months*
6
1
2
1
8
2
4
3
0
3
6
4
2
4
8
5
4
6
0
Change
engine
oil
and
filter
•
•••••••••
Rotate
tires,
inspect
tire
wear
and
measure
tread
depth.
V
ehicles
with
dual
rear
wheels
should
only
rotate
if
unusual
wear
is
observed.
•
•••••••••
Inspect
wheels
and
related
components
for
abnormal
noise,
wear
,
looseness
or
drag
•
•••••••••
Perform
multi-point
inspection
(recommended)
•
•••••••••
Inspect
automatic
transmission
fluid
level
(if
equipped
with
dipstick);
consult
dealer
for
requirements.
•••••
Inspect
brake
pads,
shoes,
rotors,
drums,
brake
linings,
hoses
and
parking
brake
•••••
Inspect
engine
cooling
system
concentration
and
hoses
•••••
Inspect
exhaust
system
and
heat
shields
•••••
Inspect
front
axle
and
U-joints;
lubricate
if
equipped
with
grease
fittings
(4WD
vehicles)
•••••
Inspect
half-shaft
boots
(if
equipped)
•••••
Inspect
steering
linkage,
ball
joints,
suspension,
tie-rod
ends,
driveshaft
and
U-joints;
lubricate
if
equipped
with
grease
fittings
•••••
T
orque
rear
U-bolts
(T
ransit
Connect)
•••••
Inspect
cabin
air
filter
(if
equipped)
••
•
•
•
*
W
hichever
comes
first
Scheduled Maintenance Guide
349
2011 Navigator
(nav)
Owners Guide, 1st Printing
USA
(fus)