2020 FORD F-550 service interval

Exceptions
Axle and Transfer Case Maintenance
Axle(s) and transfer case, 4X4 only, fluid
changes or level checks are not required
unless a leak is suspected or the assembly
has been submerged in water. During long
periods of trailer towing with outside
temperatures above 70°F (21°C) or at
wide-open throttle for long periods above
45 mph (72 km/h)
, change the rear axle
fluid every 30,000 mi (48,000 km) if the
rear axle is filled with non-synthetic fluid.
This interval can be waived and the
150,000 mi (240,000 km) service interval
can continue if the rear axle is filled with
75W140 synthetic gear fluid meeting Ford
specification WSL-M2C192-A, part number
XY-75W140-QL, or equivalent. Add friction
modifier XL-3 (EST-M2C118-A) or
equivalent for complete refill of
Traction-Lok rear axles. See
Capacities
and Specifications (page 429).
Additional Axle Maintenance for Dual
Rear Wheels
Change the rear axle fluid every
250,000 mi (400,000 km)
under normal
driving conditions on all commercial
applications. When you operate your
vehicle at or near maximum gross vehicle
weights, change the rear axle fluid every
60,000 mi (96,000 km)
. In addition,
follow this 60,000 mi (96,000 km)
schedule when you operate your vehicle
under the special operating conditions
where noted. California Fuel Filter Replacement
If you register your vehicle in California, the
California Air Resources Board has
determined that the failure to perform this
maintenance item does not nullify the
emission warranty or limit recall liability
before the completion of your vehicle's
useful life. Ford Motor Company, however,
urges you to have all recommended
maintenance services performed at the
specified intervals and to record all vehicle
service.
Hot Climate Oil Change Intervals
Vehicles operating in the Middle East,
North Africa, Sub-Saharan Africa or
locations with similar climates using an
American Petroleum Institute (API)
Certified for Gasoline Engines (Certification
mark) oil of SM or SN quality, the normal
oil change interval is 3,000 mi (5,000 km).
If the available API SM or SN oils are not
available, then the oil change interval is
2,000 mi (3,000 km)
.
Engine Air Filter and Cabin Air Filter
Replacement
The life of the engine air filter and cabin air
filter is dependent on exposure to dusty
and dirty conditions. Vehicles operated in
these conditions require frequent
inspection and replacement of the engine
air filter and cabin air filter.
Diesel Particulate Filter
Over time, a slight amount of ash builds
up in the diesel particulate filter, which is
not removed during the regeneration
process. The filter may need to be replaced
with a new or remanufactured part at
approximately 250,000 mi (400,000 km).
Actual mileage varies depending on engine
and vehicle operating conditions.
570
Super Duty (TFE), enUSA, Edition date: 201909, Third-Printing- Scheduled Maintenance

Accessing the Phone Features.....................
476
Accessing the Settings Menu........................ 476
Accessing the Sound Settings...................... 476
Adjusting the Volume....................................... 477
Changing Radio Stations................................. 477
Listening to the Radio....................................... 477
Playing or Pausing Media................................ 477
Switching Radio Text On and Off.................477
Switching Repeat Mode On and Off...........477
Switching Shuffle Mode On and Off...........477
Switching the Audio Unit On and Off.........477
Switching the Display On and Off................477
Using Seek, Fast Forward and Reverse............................................................. 478
Using the Display Control............................... 478
Using the Number Block................................. 478
Autolamps........................................................87 Windshield Wiper Activated
Headlamps........................................................ 87
Automatic Climate Control......................140 Directing the Airflow......................................... 140
Setting the Blower Motor Speed................... 141
Setting the Temperature.................................. 141
Switching Auto Mode On and Off.................141
Switching Dual Zone Mode On and Off........................................................................\
. 141
Switching Maximum Air Conditioning On and Off................................................................ 141
Switching Maximum Defrost On and Off........................................................................\
. 141
Switching Recirculated Air On and Off........................................................................\
142
Switching the Air Conditioning On and Off........................................................................\
. 141
Switching the Climate Control On and Off........................................................................\
. 141
Automatic High Beam Control..................92
Automatic High Beam Control Indicators........................................................92
Automatic Transmission
...........................201
Brake-Shift Interlock........................................ 204
For F350, F450, F550 and F600 Chassis Cab Vehicles................................................... 204
If Your Vehicle Gets Stuck in Mud or Snow................................................................. 205
Understanding the Shift Positions of Your Automatic Transmission............................. 201Understanding Your SelectShift
Automatic ™ Transmission....................... 202
Automatic Transmission Fluid Check............................................................365
Autowipers
.......................................................84
Auxiliary Power Points................................162 400 Watt AC Power Point............................... 162
DC Power Point................................................... 162
Locations............................................................... 163
Auxiliary Switches
.......................................547
Upfitter Interface Module............................... 550
B
Battery See: Changing the 12V Battery..................... 368
Bed Extender
....................................................72
Grocery mode........................................................ 74
Tailgate mode........................................................ 73
Bed Ramps....................................................269 Installing the Ramp Holder............................. 271
Stowing the Bed Ramp..................................... 271
Using the Bed Ramp......................................... 270
Blind Spot Information System
.............248
Blind Spot Information System with Trailer
Tow.................................................................... 250
Switching the System Off and On...............252
System Errors...................................................... 252
Using the System.............................................. 249
BLIS See: Blind Spot Information System..........248
Bonnet Lock See: Opening and Closing the Hood...........337
Booster Seats
...................................................31
Types of Booster Seats...................................... 32
Brake Fluid Check........................................366 Brake Fluid Service Interval............................ 367
Brakes................................................................217 General Information........................................... 217
Breaking-In.....................................................310
Bulb Specification Chart...........................467
C
Canceling the Set Speed..........................225
Capacities and Specifications - 6.2L
.................................................................437
Air Conditioning System.................................. 437
614
Super Duty (TFE), enUSA, Edition date: 201909, Third-Printing- Index