Ford Taurus 2011 Owner's Manual page 375

TRANSMISSION CODE DESIGNATIONS
You can find a transmission code on
the Safety Compliance Certification
Label. The following table tells you
which transmission each code
represents.
Description
6-speed automatic transmission (6F50)
6-speed automatic transmission (6F55)
2011 Taurus
Owners Guide, 3rd Printing
USA (fus)
Maintenance and Specifications
Code
J
C
375