2020 FORD F-550 service interval

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Page 451 of 631

FORD F-550 2020  Owners Manual Engine Coolant
Capacities
Quantity
Variant
31.7 qt (30 L)
Primary cooling system.
8.1 qt (7.7 L)
Secondary cooling system.
Materials Specification
Name
WSS-M97B57-A2
Motorcraft® Yellow Prediluted Ant

Page 556 of 631

FORD F-550 2020  Owners Manual GENERAL MAINTENANCE
INFORMATION
Why Maintain Your Vehicle?
Carefully following the maintenance
schedule helps protect against major repair
expenses resulting from neglect or
inadequate maintenance and

Page 557 of 631

FORD F-550 2020  Owners Manual When the oil change message appears in
the information display, it is time for an oil
change. Make sure you perform the oil
change within two weeks or 500 mi
(800 km) of the message appearing. Make
su

Page 559 of 631

FORD F-550 2020  Owners Manual Multi-Point Inspection
In order to keep your vehicle running right,
it is important to have the systems on your
vehicle checked regularly. This can help
identify potential issues and prevent major
pro

Page 563 of 631

FORD F-550 2020  Owners Manual Result
Engine Air Filter Status
Message
Indicates the engine air filter is performing as expected.
Filter OK
Indicates that there is a higher than expected restriction
across the engine air filter, wh

Page 564 of 631

FORD F-550 2020  Owners Manual At Every Oil Change Interval as Indicated by the Information Display
1
Inspect the front axle and U-joints. Lubricate any grease fittings. Four-wheel drive
vehicles.
Inspect the steering linkage, ball

Page 565 of 631

FORD F-550 2020  Owners Manual Other Maintenance items
1
Change the automatic transmission fluid and filter. Consult
dealer for requirements.
Every 150,000 mi
(240,000 km) Replace the accessory drive belt or belts if not replaced
w

Page 568 of 631

FORD F-550 2020  Owners Manual Off-road operation
Inspect the wheels and related components for abnormal
noise, wear, looseness or drag.
Rotate tires, inspect tires for wear and measure the tread
depth. 1
Replace front wheel bearin
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