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Off-road operation
Inspect the wheels and related components for abnormal
noise, wear, looseness or drag.
Rotate tires, inspect tires for wear and measure tread
depth.
1
Replace front wheel bearing grease and grease seals if
non-sealed bearings are used.
Every 30,000 mi
(48,000 km)
1
Vehicles with dual rear wheels should rotate the front wheels when specified; rear wheels
only if unusual wear is noted.
Exclusive use of E85 (Flex Fuel Vehicles Only)
If ran exclusively on E85, fill the fuel tank full with regular
unleaded fuel.
Every oil change interval
Diesel Engine
If you operate your vehicle primarily in any
of the following conditions, you need to
perform extra maintenance as indicated.
If you operate your vehicle occasionally
under any of these conditions, it is not
necessary to perform the extra
maintenance. For specific
recommendations, see your dealership
service advisor or technician.
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.
As required
See the axle maintenance items under Exceptions.
Replace the engine-mounted and frame-mounted fuel
filters.
Every 15,000 mi
(24,000 km) or six months,
600 engine hours
Replace the wheel bearing grease and grease seals if using
non-sealed bearings. (Two-wheel drive vehicles)
Every 30,000 mi
(48,000 km)
591
Super Duty (TFE) Canada/United States of America, enUSA, Edition date: 201804, Fourth-Printing
Scheduled Maintenance
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