2021 FORD F650/750 recommended oil

A message appears in the information
display when it is time for an oil change.
Make sure you perform the oil change
within two weeks or 500 mi (800 km) of
the message appearing. Make sure you
reset the Intelligent Oil-Life Monitor after
each oil change. See Instrument Cluster
(page
63).
If your information display resets
prematurely or becomes inoperative, you
should perform the oil change interval at
six months or
5,000 mi (8,000 km) from
your last oil change. Never exceed one year
or
10,000 mi (16,000 km) between oil
change intervals.
All Vehicles
Your vehicle is very sophisticated and built
with multiple, complex, performance
systems. Every manufacturer develops
these systems using different
specifications and performance features.
That is why it is important to rely upon your
dealership to properly diagnose and repair
your vehicle.
Ford Motor Company has recommended
maintenance intervals for various parts
and component systems based upon
engineering testing. Ford Motor Company
relies upon this testing to determine the
most appropriate mileage for replacement
of oils and fluids to protect your vehicle at
the lowest overall cost to you and
recommends against maintenance
schedules that deviate from the scheduled
maintenance information.
We strongly recommend the use of only
genuine Ford, Motorcraft or
Ford-authorized re-manufactured
replacement parts engineered for your
vehicle. Additives and Chemicals
This owner's manual and the Ford
Workshop Manual list the recommended
additives and chemicals for your vehicle.
We do not recommend using chemicals or
additives not approved by us as part of
your vehicle
’s normal maintenance. Please
consult your warranty information.
Oils, Fluids and Flushing
In many cases, fluid discoloration is a
normal operating characteristic and, by
itself, does not necessarily indicate a
concern or that the fluid needs to be
changed. However, a qualified expert, such
as the factory-trained technicians at your
dealership, should inspect discolored fluids
that also show signs of overheating or
foreign material contamination
immediately.
Make sure to change your vehicle ’s oils and
fluids at the specified intervals or in
conjunction with a repair. Flushing is a
viable way to change fluid for many vehicle
sub-systems during scheduled
maintenance. It is critical that systems are
flushed only with new fluid that is the same
as that required to fill and operate the
system or using a Ford-approved flushing
chemical.
Scheduled Maintenance Services
Maintenance service adjustments must
conform to specifications contained in this
manual, and those shown on the Important
Engine Information decal. Perform the
following services at scheduled intervals
because they essential to the life and
performance of your vehicle. Ford
recommends that you perform
maintenance on all designated items to
achieve best vehicle operation.
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Gasoline Engines
7,500 mi (12,000 km) or Six Months Whichever Comes First
Rotate the tires, inspect tire wear and measure the tread depth. 1
Inspect the wheels and related components for abnormal noise, wear, looseness or
drag.
Perform a multi-point inspection, recommended.
Inspect front oil hubs for leaks and check fluid level through hub cap sight glass.
1 Rotate the front wheels on vehicles with dual rear wheels when specified. Only rotate
the rear wheels if you notice unusual wear. 10,000 mi (16,000 km) /450 Engine Hours or 12 Months Whichever Comes First
Change the engine oil and filter. 15,000 mi (24,000 km) or 12 Months Whichever Comes First
Inspect the automatic transmission fluid level. Consult an authorized dealer for
requirements.
Inspect the brake pads, shoes, rotors, drums, brake linings, hoses and the parking brake.
Inspect the engine cooling system concentration, freeze-point protection, level and
hoses.
Inspect the exhaust system and heat shields.
Inspect the steering linkage, ball joints, suspension, tie-rod ends, driveshaft and the U-
joints. Lubricate any components that have grease fittings. Brake Fluid Maintenance
1
Change the brake fluid. 2
Every 3 Years
1 Perform this maintenance item every 3 years. Do not exceed the designated time for
the interval.
2 Brake fluid servicing requires special equipment available at your authorized dealer.
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Other Maintenance Items
Replace the engine air filter.
Every 30,000 mi
(48,000 km)
Replace the front wheel bearing grease and grease seal
if you have non-sealed bearings.
Every
60,000 mi
(96,000 km)
Replace the spark plugs.
Every
97,000 mi
(156,000 km)
Change the rear axle fluid. See
Special Operating
Conditions Scheduled Maintenance (page 329).
Every 105,000 mi
(168,000 km)
Inspect the accessory drive belt or belts. 1
Change the automatic transmission fluid and filter. Consult
an authorized dealer for requirements.
Every
150,000 mi
(240,000 km) Replace the accessory drive belt or belts if not replaced
within the last 100,000 mi (160,000 km).
Replace the front wheel bearings and seals if you have
non-sealed bearings.
Change the engine coolant. 2
Every
200,000 mi
(320,000 km)
1 If not replaced, inspect every
15,000 mi (24,000 km).
2 Initial replacement at 10 years or
200,000 mi (320,000 km), then every five years or
100,000 mi (160,000 km).
Diesel Engine
Note: Do not exceed the mileage or time
intervals. At Every Oil Change Interval as Indicated by the Information Display
1
Change the engine oil and filter. 2
Drain the fuel filter water trap.
Refill the diesel exhaust fluid tank.
Rotate the tires, inspect the tires for wear and measure the tread depth. 3
Perform a multi-point inspection, recommended.
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Rear Axle Maintenance
A rear axle fluid change or level check is
not required unless you suspect a leak 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
the rear axle fluid every 24,000 mi
(38,000 km) or three months, whichever
comes first.
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. We, however, urge you to have
all recommended maintenance services
performed at the specified intervals and
to record all vehicle service.
Hot Climate Oil Change Intervals
The normal oil change interval is 3,000 mi
(5,000 km) for gasoline vehicles operating
in the Middle East, North Africa,
Sub-Saharan Africa or locations with
similar climates using American Petroleum
Institute (API) oils Certified for Gasoline
Engines and displaying the API Certification
Mark. If API Certified Oils are not available,
then it is acceptable to use API SM or SN
oils. If API oils are not available, then the
oil change interval is 1,750 mi (3,000 km). 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 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.
In this case, the engine control system sets
a service light (wrench icon) to inform you
to bring your vehicle to the dealer for
service. If there are any issues with the
oxidation catalyst or particulate filter
system, a service light (wrench or engine
icon) sets by the engine control system to
inform you to bring your vehicle into a
dealer for service.
SCHEDULED MAINTENANCE
RECORD
After the scheduled maintenance services
are performed, record the Repair Order #,
Distance and Engine Hours in the boxes
provided.
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