Ford F-150 2018 Owner's Manual page 568

Inspect frequently, service
as required
Every 5,000 mi (8,000 km)
or six months
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Reset your Intelligent Oil-Life Monitor after each engine oil and filter change.
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.
F-150 (TFC) Canada/United States of America, enUSA, Edition date: 201709, Second Printing
Scheduled Maintenance
Off-road Operation
Inspect steering linkage, ball joints and U-joints. Lubricate
if equipped with grease fittings.
Replace engine air filter. (Gasoline engine).
Inspect the air filter restriction gauge. Replace the filter if
necessary (Diesel Engine).
Change engine oil and filter.
Inspect the wheels and related components for abnormal
noise, wear, looseness or drag.
Rotate tires, inspect tires for wear and measure tread
depth.
Exclusive Use of E85 (Flex Fuel Vehicles Only)
If ran exclusively on E85, fill the fuel tank full with regular
unleaded fuel. (Gasoline Engine).
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