
Coolant Change
At specific mileage intervals, as listed inthe scheduled maintenance information,the coolant should be changed. Theinformation display may display a messageto change coolant at this time. Addprediluted coolant approved to the correctspecification. See Capacities andSpecifications (page 415).
Engine-driven Cooling Fan (FanClutch)
Your vehicle may have an engine drivencooling fan drive (also called a fan clutch).This fan drive changes the fan speed tomatch the vehicle’s changing cooling airflow requirements. Fan speed, fan noiselevel and fuel consumption all will increasebased on the driving conditions thatinclude trailer towing, hill climbing, heavyloads, high speed and high ambienttemperature, individually or in combination.
The fan drive is designed to provide theminimum fan speed (and resultingminimum fan noise and fuel consumption)required to meet the ever changing vehiclecooling air flow requirements. You will hearthe amount of fan noise increasing anddecreasing as the engine powerrequirements and vehicle driving conditionschange as you drive. This is to be expectedas being normal to the operation of yourvehicle. High levels of fan noise might alsobe heard when your engine is first started,and should normally decrease after drivingfor a short time.
AUTOMATIC TRANSMISSION
FLUID CHECK
Have an authorized dealer check andchange the transmission fluid and filter atthe correct service interval. SeeScheduled Maintenance (page 573).
Do not use supplemental transmissionfluid additives, treatments or cleaningagents. The use of these materials mayaffect transmission operation and resultin damage to internal transmissioncomponents.
Checking Automatic TransmissionFluid
For scheduled intervals of the fluid checksand changes, See ScheduledMaintenance (page 573). Yourtransmission does not consume fluid.However, the fluid level should be checkedif the transmission is not working properly,i.e., if the transmission slips or shifts slowlyor if you notice some sign of fluid leakage.
Automatic transmission fluid expandswhen warmed. To obtain an accurate fluidcheck, drive the vehicle until it is at normaloperating temperature (approximately19 mi (30 km)). Verify that thetransmission fluid temperature gauge,located on the instrument cluster, is withinnormal range.
1. Drive the vehicle 19 mi (30 km)until itreaches normal operating temperature.
2.Park the vehicle on a level surface andengage the parking brake.
3.With the engine running, parking brakeengaged and your foot on the brakepedal, move the gearshift lever throughall of the gear ranges. Allow sufficienttime for each gear to engage.
4.Latch the gearshift lever in P and leavethe engine running.
5. Remove the dipstick, wiping it cleanwith a clean, dry lint free rag. Ifnecessary, refer to the Under HoodOverview in this chapter for thelocation of the dipstick.
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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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Pick-up Truck
Filter LocationBox LengthCab Type
Left side of fuel tank.8 ft (2.4 m)Regular.
6.75 ft (2.057 m)SuperCab.
In front of fuel tank.8 ft (2.4 m)
6.75 ft (2.057 m)Super Crew Cab.Left side of fuel tank.8 ft (2.4 m)
Chassis Cab
Filter LocationFuel Tank TypeCab Type
Right side of fuel tank.Single midship fuel tankChassis Cab.
Right side of midship fueltank.Aft axle/midship fuel tanksChassis Cab.
Front of fuel tank.Single aft axle fuel tankChassis Cab.
Removal
1. Disconnect the fuel line quick connectcoupling from the in tank fuel pump.
2. Locate your filter.
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MaintenanceE247666

CAPACITIES AND SPECIFICATIONS - 6.2L
Capacities
WARNING
The air conditioning refrigerant system contains refrigerant under high pressure.Only qualified personnel should service the air conditioning refrigerant system.Opening the air conditioning refrigerant system can cause personal injury.
CapacityItem
7.0 qt (6.6 L)Engine oil (with oil filter)
21.3 qt (20.2 L)Engine coolant
Between MIN and MAX on brake fluidreservoirBrake fluid
2.7 qt (2.6 L)Front axle
3.3–3.5 qt (3.1–3.3 L)Rear axle-10.5 inch (E-Locker)
3.5–3.6 qt (3.3–3.4 L)Rear axle-10.5 inch (non E-Locker)
3.8 qt (3.63 L)Rear axle-Dana M275
4.5 qt (4.26 L)*Rear axle-Dana M300
16.7 qt (15.8 L)**Automatic transmission fluid (6R100)
17.4 qt (16.5 L)**Automatic transmission fluid (6R140)
1.9 qt (1.8 L)Transfer case fluid
Fill as requiredWindshield washer fluid
26.5 gal (100.3 L)Fuel tank (incomplete vehicle, middlelocation)
34 gal (128.7 L)Fuel tank (All except 176 inch wheelbaseand incomplete vehicles)
48 gal (181.7 L)Fuel tank (176 inch wheelbase)
40 gal (151.4 L)Fuel tank (incomplete vehicle, Aft- axle -location)
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Capacities and Specifications

specification WSL-M2C192-A, part numberXY-75W140-QL, or equivalent. Add frictionmodifier XL-3 (EST-M2C118-A) orequivalent for complete refill ofTraction-Lok rear axles. See Capacitiesand Specifications (page 415).
Additional Axle Maintenance for DualRear Wheels
Change rear axle fluid every 250,000 miles(400,000 kilometers) under normal drivingconditions on all commercial applications.When operating your vehicle at or nearmaximum gross vehicle weights, changethe rear axle fluid every 60,000 miles(96,000 kilometers). In addition, followthis 60,000 mile (96,000 kilometer)schedule when operating your vehicleunder the special operating conditionswhere noted.
California Fuel Filter Replacement
If you register your vehicle in California, theCalifornia Air Resources Board hasdetermined that the failure to perform thismaintenance item does not nullify theemission warranty or limit recall liabilitybefore the completion of your vehicle'suseful life. Ford Motor Company, however,urges you to have all recommendedmaintenance services performed at thespecified intervals and to record all vehicleservice.
Hot Climate Oil Change Intervals
Vehicles operating in the Middle East,North Africa, Sub-Saharan Africa orlocations with similar climates using anAmerican Petroleum Institute (API)Certified for Gasoline Engines (Certificationmark) oil of SM or SN quality, the normaloil change interval is 3000 miles (5000kilometers).
If the available API SM or SN oils are notavailable, then the oil change interval is1800 miles (3000 kilometers).
Engine Air Filter and Cabin Air FilterReplacement
The life of the engine air filter and cabin airfilter is dependent on exposure to dustyand dirty conditions. Vehicles operated inthese conditions require frequentinspection and replacement of the engineair filter and cabin air filter.
Diesel Particulate Filter
The filter may need to be removed for ashcleaning at approximately 120000 miles(192000 kilometers) or greater (actualmileage can vary greatly depending uponengine and vehicle operating conditions)and replaced with a new orremanufactured (ash cleaned) part. Thefilter may need to be replaced atapproximately 250000 miles (400000kilometers) depending upon engine andvehicle operating conditions. In both cases,the engine control system sets a servicelight (wrench icon) to inform you to bringyour vehicle to the dealer for service. Ifthere are any issues with the oxidationcatalyst or particulate filter system, aservice light (wrench or engine icon) setsby the engine control system to inform youto bring your vehicle into a dealer forservice.
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Scheduled Maintenance