Lincoln 2011 MKZ(378) Owner's Manual page 332

Scheduled Maintenance Guide
Extensive idling and/or low-speed driving for long distances as in heavy
commercial use such as delivery, taxi, patrol car or livery
Inspect frequently, service as
Every 300 hours of engine
Every 30,000 miles (48,000 km) – Change automatic transmission fluid (except Fiesta and
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].)
332
2011 MKZ (378)
Owners Guide, 1st Printing
USA (fus)
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)
– Replace cabin air filter (if equipped)
required
– Replace engine air filter
– Change engine oil and replace oil filter (Fiesta)
operation*
vehicles equipped with a 6R80 transmission)