Extensive idling and/or low-speed driving for long distances as in heavy
commercial use such as delivery, taxi, patrol car or livery
As required
– Change engine oil and replace oil filter as indicated by
message center and perform services as listed in the
Normal Scheduled Maintenance chart (except Fiesta)
Inspect frequently, service as
required
– Replace cabin air filter (if equipped)
– Replace engine air filter
Every 300 hours of engine
operation*
– Change engine oil and replace oil filter (Fiesta)
Every 30,000 miles (48,000 km)
– Change automatic transmission fluid (except Fiesta and
vehicles equipped with a 6R80 transmission)
Every 60,000 miles (96,000 km)
– Replace spark plugs
* Engine hour meter installation is recommended for these operating
conditions.
Perform the services noted in the preceding table at the specified
time/mileage (km) period either within 3,000 miles (5,000 km) of the
OIL CHANGE REQUIRED message appearing in the message center or
when the time/mileage (km) reading indicates service is due.
Example #1:
The OIL CHANGE REQUIRED message comes on at
28,751 miles (46,270 km); perform the 30,000 mile (48,000 km)
automatic transmission fluid replacement.
Example #2:
The OIL CHANGE REQUIRED message has
not
come on
but the odometer reads 30,000 miles (48,000 km); perform the engine air
filter replacement. (i.e., Intelligent Oil Life Monitor™ was reset at
25,000 miles [40,000 km].)
Scheduled Maintenance Guide
332
2011 MKZ
(378)
Owners Guide, 1st Printing
USA
(fus)
