Ford F-150 2018 Owner's Manual page 569

As required
Every 30,000 mi
(48,000 km) or six months,
600 engine hours
Every 30,000 mi
(48,000 km) or 1200 engine
hours
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.
Frequent or Extended Idling (Over 10 Minutes Per Hour of Normal Driving) or Frequent
Low-speed Operation if your Vehicle is Used for Stationary Operation
As required
Every 30,000 mi
(48,000 km), six months or
600 engine hours
Every 30,000 mi
(48,000 km) or 1200 engine
hours
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.
F-150 (TFC) Canada/United States of America, enUSA, Edition date: 201709, Second Printing
Scheduled Maintenance
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
scheduled maintenance chart.
See the axle maintenance items under Exceptions.
Replace the engine-mounted and frame-mounted fuel
filters.
Inspect the engine and cooling system coolant concentra-
tion (freeze-point protection) and additive (corrosion
inhibitor) strength. Add coolant additive if necessary.
Flush and refill the coolant. Do not add coolant additive.
Change the engine oil and filter as indicated by the
information display, and perform the services listed in the
scheduled maintenance chart.
Replace the engine-mounted and frame-mounted fuel
filters.
Inspect the engine and cooling system coolant concentra-
tion (freeze-point protection) and additive (corrosion
inhibitor) strength. Add coolant additive if necessary.
Flush and refill the coolant. Do not add coolant additive.
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