FORD 2013 F-550 v.2 - Manual (Page 316)

High Fluid Level
Type A
Type B
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.
High fluid levels can be caused by an overheating condition.
Adjusting Automatic Transmission Fluid Levels
Note: Use of a non-approved automatic transmission fluid may cause
internal transmission component damage.
Before adding any fluid, make sure the correct type is used. The type of
fluid used is normally indicated on the dipstick handle and also in the
Capacities and Specifications chapter.
If necessary, add fluid in 1/2 pint (250 ml) increments through the filler
tube until the level is correct.
Type A
Type B
If an overfill occurs, excess fluid should be removed by a qualified
technician.
Note: An overfill condition of transmission fluid may cause shift and/or
engagement concerns and/or possible damage.
Maintenance 315
2013 F-250/350/450/550 (f23)
Owners Guide gf, 2nd Printing, December 2012
USA (fus)