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Page 676 of 796

FORD F-150 2021  Owners Manual Frequent Low-Speed Operation, Consistent Heavy Traffic Under 25 mph (40 km/h)  or
Long Rush-Hour Traffic
Inspect the engine and cooling system coolant concentra-
tion and freeze-point protection.
Ever

Page 678 of 796

FORD F-150 2021  Owners Manual Off-Road Operation
Change the engine oil and filter. 1
Every 7,500 mi (12,000 km)
or 300 engine hours
Replace the engine-mounted and frame-mounted fuel
filters.
Every 
30,000 mi
(48,000 km), six month

Page 679 of 796

FORD F-150 2021  Owners Manual Engine Air Filter Replacement
The life of the engine air filter is dependent
on exposure to dusty and dirty conditions.
Vehicles operated in these conditions
require frequent inspection and
replacemen

Page 680 of 796

FORD F-150 2021  Owners Manual Extensive Idling or Low-speed Driving for Long Distances, as in Heavy Commercial Use,
such as Delivery, Taxi, Patrol Car or Livery
Change the engine oil and filter as indicated by the
information disp

Page 681 of 796

FORD F-150 2021  Owners Manual Exclusive Use of E85 - Flex Fuel Vehicles Only
If exclusively ran on E85, fill the fuel tank full with regular
unleaded fuel.
Every oil change interval Driver Training/EVOC
Replace engine oil and filt

Page 682 of 796

FORD F-150 2021  Owners Manual an "H" for hours). The idle meter only
accumulates time while the vehicle is in
park (P) or neutral (N). Displayed time is
cumulative for the vehicle and cannot be
reset to zero. Police vehicl

Page 683 of 796

FORD F-150 2021  Owners Manual Towing a Trailer or Using a Car-top Carrier
Change the engine oil and filter as indicated by the
information display and perform services listed in the
normal scheduled maintenance chart.
As required

Page 756 of 796

FORD F-150 2021  Owners Manual A. Third Party Notices. Any and all copies
of the Data and/or packaging relating
thereto shall include the respective Third
Party Notices set forth below and used
as described below corresponding to
t