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5Optional fuel tank 208L (55 gallon).
6Ensure the correct automatic transmission fluid is used. Transmission
fluid requirements are indicated on the dipstick or on the dipstick
handle. Check the container to verify the fluid being added is of the
correct type. Refer to your scheduled maintenance guide to determine
the correct service interval.
Some transmission fluids may be labeled as dual usage, such as
MERCONand MERCONV. These dual usage fluids are not to be used
in an automatic transmission that requires use of the MERCONtype
fluid. However, these dual usage fluids may be used in transmissions that
require the MERCONV type fluid.
MERCONand MERCONV type fluids are not interchangeable.
DO NOT mix MERCONand MERCONV. Use of a transmission
fluid that indicates dual usage (MERCONand MERCONV) in
an automatic transmission application requiring MERCONmay
cause transmission damage. Use of any fluid other than the
recommended fluid may cause transmission damage.
7Approximate dry fill capacity including transmission fluid cooling
system, actual refill capacities will vary based on vehicle application and
transmission fluid cooling system (i.e. coolers size, cooling lines. auxiliary
cooler capacities). The amount of transmission fluid and fluid level
should be set by the indication on the dipstick’s normal operating range.
8If your vehicle is equipped with a single row radiator, there will be a
label on the top side of the radiator indicating“1 Row Radiator”.
9Use of synthetic or synthetic blend motor oil is not mandatory. Engine
oil need only meet the requirements of Ford specification
WSS-M2C153–H and the API Certification mark.
2004 Econoline(eco)
Owners Guide (post-2002-fmt)
USA English(fus)
Maintenance and Specifications
221
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Item Ford part
nameFord part
numberFord
specification
Dana Limited
Slip Axles
3
M60 (M248)
E-250/350
M70FF
(M267FF)
E-350
M70HD
(M273HD)
E-450SAE 90 Hypoid
Gear OilC6AZ-19580–E ESW-M2C105–E
Dana
conventional
axles
M60 (M248)
E-250/350
M70FF
(M267FF)
E-350
M70HD
(M273HD)
E-450SAE 80W-90
Premium Rear
Axle LubricantXY-80W90–QL WSP-M2C197–A
Windshield
washer fluidMotorcraft
Premium
Windshield
Washer
ConcentrateZC-32–A WSB-M8B16–A2
1Ensure the correct automatic transmission fluid is used. Transmission
fluid requirements are indicated on the dipstick or on the dipstick
handle. Check the container to verify the fluid being added is of the
correct type. Refer to your scheduled maintenance guide to determine
the correct service interval.
Some transmission fluids may be labeled as dual usage, such as
MERCONand MERCONV. These dual usage fluids are not to be used
in an automatic transmission that requires use of the MERCONtype
fluid. However, these dual usage fluids may be used in transmissions that
require the MERCONV type fluid.
2004 Econoline(eco)
Owners Guide (post-2002-fmt)
USA English(fus)
Maintenance and Specifications
224
Page 225 of 240

MERCONand MERCONV type fluids are not interchangeable.
DO NOT mix MERCONand MERCONV. Use of a transmission
fluid that indicates dual usage (MERCONand MERCONV) in
an automatic transmission application requiring MERCONmay
cause transmission damage. Use of any fluid other than the
recommended fluid may cause transmission damage.
2Add 118 ml (4 oz.) of Additive Friction Modifier XL-3 or equivalent
meeting Ford specification EST-M2C118-A for complete refill of Visteon
Traction-Lok rear axles.
3Add 237 ml (8 oz.) of Additive Friction Modifier C8AZ-19B546-A or
equivalent meeting Ford specification EST-M2C118-A for complete refill
of Dana Limited Slip rear axles.
ENGINE DATA
Engine*4.6L V8
engine5.4L V8
engine6.8L V10 engine
Cubic inches 281 330 415
Required fuel 87 octane 87 octane 87 octane
Firing order 1-3-7-2-6-5-4-8 1-3-7-2-6-5-4-8 1-6-5-10-2-7-3-8-4-9
Spark plug gap1.3-1.4 mm
(0.052-0.056
inch)1.3-1.4 mm
(0.052-0.056
inch)1.3-1.4 mm
(0.052-0.056 inch)
Ignition system Coil on plug Coil on plug Coil on plug
Compression
ratio9.4:1 9.0:1 9.0:1
*Refer to the7.3 Liter Power Stroke Direct Injection Turbo Diesel
Owner’s Guide Supplementfor diesel engine information.
2004 Econoline(eco)
Owners Guide (post-2002-fmt)
USA English(fus)
Maintenance and Specifications
225