FORD 2011 F-550 v.2 - Manual (Page 395)

2. Park the vehicle on a level surface and engage the parking brake.
3. With the parking brake engaged and your foot on the brake pedal,
start the engine and move the gearshift lever through all of the gear
ranges. Allow sufficient time for each gear to engage.
4. Latch the gearshift lever in P (Park) and leave the engine running.
5. Remove the dipstick, wiping it clean with a clean, dry lint free rag. If
necessary, refer to Identifying components in the engine compartment
in this chapter for the location of the dipstick.
6. Install the dipstick making sure it is fully seated in the filler tube.
7. Remove the dipstick and inspect the fluid level. The fluid should be in
the designated area for normal operating temperature or ambient
temperature.
Low fluid level
Do not drive the vehicle if the fluid
level is at the bottom of 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 180°F-200°F
(82°C-93°C) on a level surface. The normal operating temperature can
be reached after approximately 20 miles (30 km) of driving.
For vehicles equipped with 5-speed
transmissions, the transmission fluid
should be in this range if at normal
operating temperature (150°F-170°F
[66°C-77°C]). For vehicles equipped with 6-speed transmissions, the
transmission fluid should be in this range if at normal operating
temperature (180°F-200°F [82°C-93°C]).
High fluid level
Fluid levels above the safe range
may result in transmission failure.
An overfill condition of transmission
fluid may cause shift and/or
engagement concerns and/or possible damage.
ADD COLD HOT DO NOT ADD
ADD COLD HOT DO NOT ADD
ADD COLD HOT DO NOT ADD
Maintenance and Specifications
395
2011 F-250/350/450/550 (f23)
Owners Guide, 2nd Printing
USA (fus)