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FluidFord Part
NameApplication Capacity
Engine oil
(includes filter
change)-Diesel
engineRefer to your 6.0L Diesel Supplement
Fuel tank N/A Mid-ship tank
(optional on
Chassis Cab)19.0 gallons
(71.9L )
Short box 30.5 gallons
(115.5L)
Long box 38.0 gallons
(143.9L)
Aft axle 40.0 gallons
(151.4L)
Power steering
fluidMotorcraft
MERCONAT FAll Fill to FULL
COLD range on
dipstick
Transfer case
fluidMotorcraft
MERCONAT F4x4 vehicles 2.0 quarts
(1.9L)
Manual
transmission
fluidMotorcraft
MERCONAT F6-speed manual 5.8 quarts
(5.5L)
4
Automatic
transmission
fluid
3
Motorcraft
MERCONSP
AT FTorqShift
(5–speed)17.5 quarts
(16.6L)
5(includes
remote filter
element change)
Windshield
washer fluidMotorcraft
Premium
Windshield
Washer
ConcentrateAll 4.25 quarts
(4.0L)
1Add 8 oz. (236 ml) of Additive Friction Modifier XL-3 or equivalent
meeting Ford Specification EST-M2C118–A for complete refill of limited
slip axles. Ford design rear axles contain a synthetic lubricant that does
not require changing unless the axle has been submerged in water. Dana
rear axles also contain a synthetic lubricant but do require a change.
Refer to yourScheduled Maintenance Guidefor change intervals on
Dana rear axles.
REVIEW COPY
2005 F250/350/450/550(f23), Owners Guide (post-2002-fmt)(own2002),
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Maintenance and Specifications
282
Page 286 of 304

ItemFord part
name or
equivalentFord part
numberFord
specification
Manual
transmission
(6-speed)Motorcraft
MERCONAT F
2
XT-2-QDX MERCON
Automatic
transmission
TorqShift
(5–speed)Motorcraft
MERCONSP
AT F
2
XT-6–QSP MERCONSP
Windshield
washer fluidMotorcraft
Premium
Windshield
Washer
ConcentrateZC-32–A WSB-M8B16–A2
1Add 236 ml (8 oz.) of Additive Friction Modifier XL-3 or equivalent
meeting Ford specification EST-M2C118-A for complete refill of limited
slip axles. Ford design rear axles contain a synthetic lubricant that does
not require changing unless the axle has been submerged in water. Dana
rear axles also contain a synthetic lubricant butdorequire a change.
Refer to yourScheduled Maintenance Guidefor change intervals on
Dana rear axles.
2Ensure the correct automatic transmission fluid is used. Transmission
fluid requirements are indicated on the end of the dipstick. Check the
container to verify the fluid being added is of the correct type. Refer to
yourScheduled Maintenance Guideto determine the correct service
interval.
MERCON, MERCONV and MERCONSP are not
interchangeable. DO NOT mix MERCON, MERCONV and
MERCONSP. Use of dual usage fluids in an automatic
transmission application requiring MERCONSP may cause
transmission damage. Use of a transmission fluid other than the
recommended fluid may cause transmission damage.
REVIEW COPY
2005 F250/350/450/550(f23), Owners Guide (post-2002-fmt)(own2002),
Market:USA_English(fus)
Maintenance and Specifications
286
Page 304 of 304

fluid, checking and adding
(automatic) .............................273
fluid, checking and adding
(manual) .................................276
fluid, refill capacities ..............281
lubricant specifications ..283, 287
manual operation ....................188
Turn signal ..................................46
V
Vehicle dimensions ...................287
Vehicle Identification Number
(VIN) ..........................................294
Vehicle loading ..........................160Ventilating your vehicle ...........180
W
Warning lights (see Lights) .......12
Washer fluid ..............................249
Water, Driving through .............207
Windows
power .........................................58
Windshield washer fluid and
wipers ..........................................55
checking and adding fluid .....249
replacing wiper blades .............55
Wrecker towing .........................227
REVIEW COPY
2005 F250/350/450/550(f23), Owners Guide (post-2002-fmt)(own2002),
Market:USA_English(fus)
Index
304