
If your vehicle is equipped with a dieselengine, an Intelligent Oil Life Monitor™calculates the proper oil change serviceinterval. When the information displayindicates: OIL CHANGE REQUIRED, changethe engine oil and oil filter. SeeInformation Displays (page 111).
The engine oil filter protects your engineby filtering harmful, abrasive or sludgeparticles and particles significantly smallerthan most available will-fit filters. SeeMotorcraft Parts (page 419).
1. Unscrew the oil filter and oil pan drainplug and wait for the oil to drain.
2. Replace the filter.
3. Reinstall the oil pan drain plug.
4. Refill the engine with new oil. SeeCapacities and Specifications (page427).
5. For diesel engines, you need to resetthe Intelligent Oil Life Monitor™. SeeInformation Displays (page 111).
Engine lubrication for severeservice operation
The following conditions define severeoperation for which engine operation withSAE 5W-40 API CJ-4 is recommended. Oiland oil filter change intervals will bedetermined by the Intelligent Oil LifeMonitor™ as noted previously.
•Frequent or extended idling (over 10minutes per hour of normal driving).
•Low-speed operation/stationary use.
•If vehicle is operated in sustainedambient temperatures below -9°F(-23°C) or above 100°F (38°C).
•Frequent low-speed operation,consistent heavy traffic less than25 mph (40 km/h).
•Operating in severe dust conditions.
•Operating the vehicle off road.
•Towing a trailer over 1,000 mi(1,600 km).
•Sustained, high-speed driving at GrossVehicle Weight Rating (maximumloaded weight for vehicle operation).
•Use of fuels with sulfur content otherthan ultra-low sulfur diesel (ULSD).
•Use of high-sulfur diesel fuel.
CHANGING THE COALESCER
FILTER ELEMENT
WARNING
Do not dispose of engine oil or oilfilters in the household refuse or thepublic sewage system. Use anauthorized waste disposal facility.
Do not clean or recondition the filterelement.
We recommend that you demand the useof genuine Ford and Motorcraft® partswhenever your vehicle requires scheduledmaintenance or repair. Use the correctspecification filter element. SeeMotorcraft Parts (page 418).
Note:Operating your vehicle without a filterelement or with an unapproved filterelement may result in damage to the turbocharger or exchanger and could lead toengine damage that may not be covered bythe vehicle Warranty.
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Maintenance

Operating your vehicle in heavy snowfallor extreme rain conditions may allowexcessive amounts of snow or water intothe air intake system. This could restrict airflow and cause the engine to lose poweror shut down.
After installing a new air filter element, youmust reset the gauge by pressing the resetbutton.
After operating your vehicle during in heavysnowfall or extreme rain, do the following:
•Snow: At the earliest opportunity, openthe hood and clear any snow and icefrom the air filter housing inlet andreset the air filter restriction gauge.
•Extreme rain: The air filter elementdries out after approximately 15–30minutes of driving at highway speeds.At the earliest opportunity, open thehood and reset the air filter restrictiongauge.
Note:Do not remove the foam filter.
CHANGING THE ENGINE-
MOUNTED AND DIESEL FUEL
CONDITIONER MODULE FUEL
FILTERS - 6.7L DIESEL
WARNING
Do not dispose of fuel in thehousehold refuse or the publicsewage system. Use an authorizedwaste disposal facility.
Your vehicle has two fuel filters. The firstfilter mounts on top of the engine on theleft-hand side. The second filter is insidethe diesel fuel conditioner module. Themodule is mounted between the outboardside of the fuel tank and the frame rail.
Note:The module is at the front of the fueltank or at the front of the aft-axle fuel tankon some models.
Regular fuel filter changes are animportant part of engine maintenance;failing to keep with the scheduledmaintenance could lead to engineperformance issues and fuel injectionsystem damage. See ScheduledMaintenance (page 573).
Use only recommended service partsconforming to specifications. SeeMotorcraft Parts (page 418).
Note:Using fuel that has high levels ofimpurities may require more frequent filterreplacements than the service intervalspecifies.
Diesel Fuel Conditioner ModuleFilter
Filter Location
Use the tables below to find the locationof your filter.
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Maintenance

Normal Maintenance Intervals
At every oil change interval as indicated by the information display1
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 tires3, 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-pointprotection), level and hoses.
Inspect the exhaust system and heat shields.
Inspect the front axle and U-joints. Lubricate any grease fittings. (Four-wheel drivevehicles)
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 wheelsonly if unusual wear is noted.
Other maintenance items1
Replace the cabin air filter.Every 20000 miles (32000km)
Replace the engine-mounted and frame-mounted fuelfilters.Every 30000 miles (48000km)
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Scheduled Maintenance

Off-road operation
Change the rear axle fluid (Dana rear axles only - some F-350s; all F-450s and F-550s).Every 50000 miles (80000km)
Change the transfer case fluid. (Four-wheel drive vehicles)
Inspect the front axle fluid. (Four-wheel drive vehicles)
*Vehicles with dual rear wheels should rotate the front wheels when specified; rear wheelsonly if unusual wear is noted.**Reset the Intelligent Oil-Life Monitor after engine oil and filter changes.
Using biodiesel, up to and including 20% biodiesel (B20)
Change the engine oil and filter as indicated by theinformation display, and perform the services listed in thescheduled maintenance chart.
As required
Replace the engine-mounted and frame-mounted fuelfilters.Every 15000 miles (24000km), six months, 600 enginehours
Using fuel other than ultra-low sulfur diesel fuel - vehicles operated where ultra-lowsulfur diesel fuel is not required or available
Change engine oil and filter.Every 2500 miles (4000km) or three months (ifusing high sulfur fuel withmore than 500 ppm sulfur)
Change engine oil and filter.Every 5000 miles (8000km) or six months (if usinghigh sulfur fuel with fewerthan 500 ppm sulfur)
Exceptions
Axle and Transfer Case Maintenance
Axle(s) and transfer case (4X4 only) fluidchanges or level checks are not requiredunless a leak is suspected or the assemblyhas been submerged in water. During longperiods of trailer towing with outsidetemperatures above 70°F (21°C) or at
wide-open throttle for long periodsabove45 mph (72 km/h), change the rearaxle fluid every 30,000 mi (48,000 km) ifthe rear axle is filled with non-syntheticfluid. This interval can be waived and the150,000 mi (240,000km) service intervalcan continue if the rear axle is filled with75W140 synthetic gear fluid meeting Ford
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Scheduled Maintenance