M
414 MAINTENANCE SCHEDULES
A
Required Maintenance Intervals
I
N
NOTE:
** Vehicles built with the 4.7L engine are
T
E
equipped with sixteen spark plugs. One set is located on
N
the top of the engine under the coils and the second set is
A
located on the side of the engine.
N
C
The spark plugs located under the coils are a standard
E
plug and must be changed every 48,000 miles
S
(78 000 km).
C
H
The spark plugs located on the side of the engine are a
E
premium plug and must be changed every 96,000 miles
D
U
(156 000 km).
L
E
S
8