FORD 2013 F-550 v.3 - Manual (Page 315)

Low Fluid Level
Type A
Type B
Do not drive the vehicle if there is no indication of fluid on the dipstick
and the ambient temperature is above 50°F (10°C).
Correct Fluid Level
For vehicles equipped with 5-speed transmissions, the fluid should be
checked at normal operating temperature 150°F-170°F (66°C-77°C) on
a level surface. For vehicles equipped with 6-speed transmissions, the
fluid should be checked at normal operating temperature 196°F-216°F
(91°C-102°C) on a level surface. The normal operating temperature
can be reached after approximately 20 miles (30 km) of driving.
Type A
Type B
ADD COLD HOT DO NOT ADD
314 Maintenance
2013 F-250/350/450/550 (f23)
Owners Guide gf, 3rd Printing, December 2012
USA (fus)