Change spark plugs LINCOLN NAUTILUS 2020 Owners Manual

At Every Oil Change Interval as Indicated by the Information Display
1
Inspect the rear axle and U-joints - all wheel drive only.
Inspect the half-shaft boots.
Inspect the steering linkage, ball joints, suspension, tire-rod ends, driveshaft and U-joints.
Inspect the tires, tire wear and measure the tread depth.
Inspect the wheels and related components for abnormal noise, wear, looseness or drag.
1 Do not exceed one year or 10,000 mi (16,000 km) between service intervals.
2 Reset the Intelligent Oil-Life Monitor after engine oil and filter change\
s.
See Oil Change Indicator Reset (page 328). Other Maintenance Items
1
Replace the cabin air filter.
Every
20,000 mi
(32,000 km)
Replace the engine air filter.
Every
30,000 mi
(48,000 km)
Replace the spark plugs.
Every
100,000 mi
(160,000 km) Inspect the accessory drive belt or belts. 2
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Nautilus (CD9) Canada/United States of America, enUSA, Edition date: 201907, First-Printing Scheduled Maintenance

SPECIAL OPERATING CONDITIONS
SCHEDULED MAINTENANCE
If you operate your vehicle primarily in any
of the following conditions, you need to perform extra maintenance as indicated. If
you operate your vehicle occasionally under
any of these conditions, it is not necessary
to perform the extra maintenance. For
specific recommendations, see your
dealership service advisor or technician. Towing a trailer or using a car-top carrier
Change engine oil and filter as indicated by the information display and\
perform services listed in the Normal
Scheduled Maintenance chart.
As required
Inspect rear axle and U-joints (AWD only).
Inspect frequently, service
as required
Inspect half-shaft boots.
See axle maintenance items under
Exceptions.
Change automatic transmission fluid.
Every
30,000 mi
(48,000 km)
Replace spark plugs.
Every
60,000 mi
(96,000 km)
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Nautilus (CD9) Canada/United States of America, enUSA, Edition date: 201907, First-Printing Scheduled Maintenance

Extensive idling or low-speed driving for long distances, as in heavy co\
mmercial use
Change engine oil and filter as indicated by the information display and\
perform services listed in the Normal
Scheduled Maintenance chart.
As required
Replace cabin air filter.
Inspect frequently, service
as required
Replace engine air filter.
Change automatic transmission fluid.
Every 30,000 mi
(48,000 km)
Replace spark plugs.
Every
60,000 mi
(96,000 km) Extended Hot and Cold climate operation
Change engine oil and filter. *
Every
5,000 mi (8,000 km)
* Hot Climates only
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Nautilus (CD9) Canada/United States of America, enUSA, Edition date: 201907, First-Printing Scheduled Maintenance