User Manual - Page 614

For 2021 F-150 King Ranch®.

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Frequent Low-Speed Operation, Consistent Heavy Traffic Under 25 mph (40 km/h) or
Long Rush-Hour Traffic
Change the engine oil and filter as indicated by the
information display, and perform the services listed in the
scheduled maintenance chart.
As required
Inspect the air filter restriction gauge. Replace the filter if
necessary
Inspect frequently, service
as required
Replace the engine-mounted and frame-mounted fuel
filters.
Every 30,000 mi
(48,000 km), six months or
600 engine hours
Inspect the engine and cooling system coolant concentra-
tion and freeze-point protection.
Every 30,000 mi
(48,000 km) or 1200 engine
hours
Flush and refill the coolant. Do not add coolant additive.Every 60,000 mi
(96,000 km) or 2400
engine hours
Note: After the initial coolant flush and fill at 60,000 mi (96,000 km) or 2400 engine
hours, flush and fill every 45,000 mi (72,000 km) or 1800 engine hours thereafter.
Sustained High-Speed Driving at Gross Vehicle Weight Rating - Maximum Loaded Weight
for Vehicle Operation
Change the engine oil and filter as indicated by the
information display, and perform the services listed in the
scheduled maintenance chart.
As required
Replace the engine-mounted and frame-mounted fuel
filters.
Every 30,000 mi
(48,000 km), six months or
600 engine hours
Inspect the engine and cooling system coolant concentra-
tion and freeze-point protection.
Every 30,000 mi
(48,000 km) or 1200 engine
hours
Flush and refill the coolant. Do not add coolant additive.Every 60,000 mi
(96,000 km) or 2400
engine hours
Note: After the initial coolant flush and fill at 60,000 mi (96,000 km) or 2400 engine
hours, flush and fill every 45,000 mi (72,000 km) or 1800 engine hours thereafter.
611
F-150 (TFD) Canada/United States of America, enUSA, Edition date: 202007, First-Printing
Scheduled Maintenance
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