Ford 2003 Mustang Owner's Manual page 204

Maintenance and Specifications
Item Ford part
name
Rear Axle Motorcraft
Lubricant SAE 80W-90
Premium
Rear Axle
1
Lubricant
Motorcraft
SAE 75W-140
Synthetic Rear
Axle Lubricant
Automatic Motorcraft
transmission MERCON V
2
fluid ATF
3.8L Manual Motorcraft
transmission MERCON
fluid ATF
4.6L Manual Motorcraft
transmission MERCON
fluid ATF
Disc brake Motorcraft
caliper rails Silicone Brake
Caliper Grease
and Dielectric
Compound
Windshield Motorcraft
washer fluid Premium
Windshield
Washer
Concentrate
1
Add 118 ml (4 oz.) of Additive Friction Modifier XL-3
or equivalent meeting Ford specification EST-M2C118-A
for complete refill of Traction-Lok axles.
Ford design rear axles contain a synthetic lubricant
that does not require changing unless the axle has
been submerged in water.
2
Ensure the correct automatic transmission fluid is
used. Transmission fluid requirements are indicated
on the dipstick or on the dipstick handle. MERCON
and MERCON V are not interchangeable. DO NOT
mix MERCON and MERCON V. Refer to your
scheduled maintenance guide to determine the
correct service interval.
2003 Mustang (mus)
Owners Guide (post-2002-fmt)
USA English (fus)
Ford part Ford
number specification
XY-80W90-QL WSP-M2C197-A
XY-75W140-QL WSP-M2C192-A
XT-5-QM MERCON V
XT-2-QDX MERCON
XT-2–QM MERCON
XG-3 ESE-M1C171-A
ZC-32–A WSB-M8B16–A2
203