2020 LINCOLN MKZ spark plug

Towing a Trailer or Using a Car-top Carrier
Change the engine oil and filter as indicated by the information display\
and perform the services listed in the
Normal Scheduled Maintenance chart.
As required
Inspect the rear axle and U-joints.
Inspect frequently, service
as required
See the axle maintenance items under Exceptions.
Every 30,000 mi
(48,000 km) Change the automatic transmission fluid.
Replace the spark plugs.
Every
60,000 mi
(96,000 km)
485
MKZ (CC9) Canada/United States of America, enUSA, Edition date: 201905, Second-Printing Scheduled Maintenance

Extensive Idling or Low-speed Driving for Long Distances, as in Heavy Commercial Use, such as Delivery, Taxi, Patrol Car or Livery
Change the engine oil and filter as indicated by the information display\
and perform the services listed in the
Normal Scheduled Maintenance chart.
As required
Replace the cabin air filter.
Inspect frequently, service
as required
Replace the engine air filter.
Change the automatic transmission fluid.
Every 30,000 mi
(48,000 km)
Replace the spark plugs.
Every
60,000 mi
(96,000 km) Operating in dusty or sandy conditions, such as unpaved or dusty roads
Replace the cabin air filter.
Inspect frequently, service
as required
Replace the engine air filter.
Inspect the wheels and related components for abnormal noise, wear, looseness or drag.
Every
5,000 mi (8,000 km)
Rotate the tires, inspect the tires for wear and measure the tread depth.\
Change the engine oil and filter. 1
Every
5,000 mi (8,000 km)
or six months
486
MKZ (CC9) Canada/United States of America, enUSA, Edition date: 201905, Second-Printing Scheduled Maintenance