Ford F-450 (2017 year). Manual — part 142

Diesel Engine(s)

Intelligent Oil-Life Monitor

Your vehicle has an Intelligent Oil-Life
Monitor that determines when you should
change the engine oil based on how you
use your vehicle. By using several
important factors in its calculations, the
monitor helps reduce the cost of owning
your vehicle and reduces environmental
waste at the same time.

This means you do not have to remember
to change the oil on a mileage-based
schedule. Your vehicle lets you know when
an oil change is due by displaying a
message in the information display.

The following table provides examples of
vehicle use and its impact on oil change
intervals. It is a guideline only. Actual oil
change intervals depend on several factors
and generally decrease with severity of
use.

When to expect the message prompting you to change your oil

Vehicle use and example

Miles (km)

Normal

7500-10000

(12000-16000)

Normal commuting with highway driving
No, or moderate, load or towing
Flat to moderately hilly roads
No extended idling

Severe

5000-7499

(8000-11999)

Moderate to heavy load or towing
Mountainous or off-road conditions
Extended idling (200-300 hours)
Extended hot or cold operation

Extreme

3000-4999

(4000-7999)

Maximum load or towing
Extreme hot or cold operation
Use of high sulfur diesel fuel

Note: Use the appropriate special operating condition for maintenance information when
using high sulfur diesel fuels, operating your vehicle off-road or in dusty conditions (such as
unpaved roads).

Note: For every hour that your vehicle idles, it has accumulated the equivalent of
approximately 25 miles (40 kilometers) of driving.

Normal Maintenance Intervals

At every oil change interval as indicated by the information display

1

Change the engine oil and filter.

2

Fuel and water separator. Drain if necessary (or if indicated by the information display).

Refill the diesel exhaust fluid tank.

Rotate the tires

3

, inspect the tires for wear and measure tread depth.

Perform a multi-point inspection (recommended).

Inspect the air filter restriction gauge. Replace the filter if necessary.

Inspect the automatic transmission fluid level. Consult your dealer for requirements.

Inspect the brake pads, shoes, rotors, drums, brake linings, hoses and parking brake.

Inspect the engine and secondary cooling system coolant concentration (freeze-point
protection), level and hoses.

Inspect the exhaust system and heat shields.

Inspect the front axle and U-joints. Lubricate any grease fittings. (Four-wheel drive
vehicles)

Inspect the steering linkage, ball joints, suspension, tie-rod ends, driveshaft and U-joints.
Lubricate any grease fittings.

1

Do not exceed one year or 10000 miles (16000 kilometers) between service intervals.

2

Reset the Intelligent Oil-Life Monitor after engine oil and filter changes.

3

Vehicles with dual rear wheels should rotate the front wheels when specified; rear wheels

only if unusual wear is noted.

Other maintenance items

1

Replace the cabin air filter.

Every 20000 miles (32000
km)

Replace the engine-mounted and frame-mounted fuel
filters.

Every 30000 miles (48000
km)

Other maintenance items

1

Inspect the engine and secondary cooling system coolant
concentration (freeze-point protection), additive (corro-
sion inhibitor) strength, coolant level, and hoses. Add
coolant additive if necessary.

Replace the air inlet foam filter.

Every 45000 miles (72000
km)

Replace the front wheel bearing grease and grease seal
if using non-sealed bearings. (Two-wheel drive vehicles)

Every 60000 miles (96000
km)

Inspect the accessory drive belt(s).

2

At 90000 miles (144000
km)

Change the crankcase ventilation filter assembly.

Every 100000 miles
(160000 km)

Change the engine and secondary cooling system coolant.

3

Change the automatic transmission fluid and filter. Consult
an authorized dealer for requirements.

Every 150000 miles
(240000 km)

Replace the accessory drive belt(s) if not replaced within
the last 100000 miles (160000 km)

Replace the front wheel bearings and seals if using non-
sealed bearings. (Two-wheel drive vehicles)

Change axle(s) fluid. (see exceptions)

Change transfer case fluid. (if equipped)

1

You can perform these maintenance items within 3000 miles (4800 kilometers) of the

last oil change. Do not exceed the designated distance for the interval.

Note: When adding coolant additive, do not exceed the specified maximum of 48 fluid
ounces (1.4 liters) for the engine and 16 fluid ounces (473 ml) for the secondary cooling
system. Operating the engine with excessive coolant additive may cause overheating which
could lead to severe, permanent engine damage.

2

Perform follow-up inspections every 15000 miles (24000 kilometers) after the initial

inspection. Replace the belt(s) at 150000 miles (240000 kilometers).

3

Initial change is at six years or 100000 miles (160000 kilometers), then every three years

or 45000 miles (72000 kilometers).

SPECIAL OPERATING
CONDITIONS SCHEDULED
MAINTENANCE

Gasoline Engine(s)

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

Inspect and lubricate U-joints if equipped with grease
fittings.

Inspect frequently, service
as required

See axle maintenance items under Exceptions.

Inspect the wheels and related components for abnormal
noise, wear, looseness or drag.

Every 5000 miles (8000
km)

Rotate tires

*

, inspect tires for wear and measure tread

depth.

Change engine oil and filter.

Every 5000 miles (8000
km) or six months

Inspect and lubricate U-joints if equipped with grease
fittings.

Replace front wheel bearing grease and grease seals if
non-sealed bearings are used.

Every 30000 miles (48000
km)

Change transfer case fluid (Four-wheel drive vehicles).

Every 60000 miles (96000
km)

Replace spark plugs.

*

Vehicles with dual rear wheels should rotate the front wheels when specified; rear wheels

only if unusual wear is noted.

Extensive idling or low-speed driving for long distances, as in heavy commercial use

(such as delivery, taxi, patrol car or livery)

Replace engine air filter.

Inspect frequently, service
as required

Inspect brake system.

Every 5000 miles (8000
km)

Inspect wheels and related components for abnormal
noise, wear, looseness or drag.