Ford F-150 2014 Owner's Manual page 453

Every oil change interval
Exceptions
There are several exceptions to the Normal
Schedule:
Normal vehicle axle maintenance: Rear
axles and power take-off units with
synthetic fluid and light-duty trucks
equipped with Ford-design axles are
lubricated for life; do not check or change
fluid unless a leak is suspected, service is
required or the assembly has been
submerged in water. During long periods
of trailer towing with outside temperatures
above 70°F (21°C) and at wide-open
throttle for long periods above 45 mph (72
km/h), change non-synthetic rear axle fluid
every 3000 miles (4800 kilometers) or
three months, whichever comes first. This
interval can be waived if the axle is filled
with 75W140 synthetic gear fluid meeting
Ford specification WSL-M2C192-A, part
number F1TZ-19580-B, 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 296).
Police, Taxi and Livery vehicle axle
maintenance: Change rear axle fluid every
100000 miles (160000 kilometers). Rear
axle fluid change may be waived if the axle
was filled with 75W140 synthetic gear fluid
meeting Ford specification
WSL-M2C192-A, part number
F150 (TF6) , enUSA
Scheduled Maintenance
Exclusive use of E85 (Flex fuel vehicles only)
If ran exclusively on E85, fill the fuel tank full with regular
unleaded fuel.
F1TZ-19580-B, or equivalent. Add four
ounces (118 milliliters) of additive friction
modifier XL-3 (EST-M2C118-A), or
equivalent, for complete refill of
Traction-Lok rear axles. Change the axle
fluid anytime the axle submerges in water.
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 5000 miles (8000
kilometers).
If the available API SM or SN oils are not
available, then the oil change interval is
3000 miles (4800 kilometers).
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
replacement of the engine air filter.
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