FORD 2012 E-450 - Manual (Page 289)

The transmission fluid should be in this range if at ambient temperature
(50°F-95°F [10°C-35°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.
High fluid levels can be caused by an overheating condition.
H
C
ADD COLD HOT DO NOT ADD
H
C
ADD COLD HOT DO NOT ADD
Maintenance and Specifications
289
2012 Econoline (eco)
Owners Guide, 1st Printing
USA (fus)