Ford F-750 Owner's Manual page 214

Maintenance and Specifications
Lubrication
Component
Spicer axle - Multipurpose EP
front axle wheel gear lube of API
bearing oil GL-5 quality
meeting
MIL-PRF-2105E
specifications
including
synthetic
lubricants. Do
not mix
conventional
and synthetic
lubricants.
214
2007 F-650/750 (f67)
Supplement (supplement)
Canadian_French (fr_can)
Viscosity /
Ambient
type temperature /
Notes
SAE 75W: –40°F
to 32°F (–40°C to
0°C)
SAE 75W-140:
–40°F to 100°F
(–40°C to 38°C)
SAE 80W: –15°F
to 70°F (–26°C to
21°C)
SAE 90W: 10°F
to 100°F (–12°C
to 38°C)
SAE 75W-140:
–40°F and above
(–40°C and
above)
SAE 80W-140:
–15°F and above
(–26°C and
above)
SAE 85W-140:
10°F and above
(–12°C and
above)
SAE 140W: 40°F
and above (4°C
and above)
Equivalent
Ford part name
/ number
Motorcraft SAE
75W-140
Motorcraft
Synthetic Rear
Axle Lubricant /
XY–75W140–QL
Motorcraft SAE
80W-90 Premium
Rear Axle
Lubricant /
XY–80W90–QL
SAE 90 Hypoid
Gear Oil /
C6AZ–19580–E
Motorcraft SAE
75W-140
Motorcraft
Synthetic Rear
Axle Lubricant /
XY–75W140–QL