Lincoln AVIATOR 2023 Owner's Manual page 481

Materials
R-1234yf Refrigerant(U.S.)
R-1234yf Refrigerant / Frigorigène R-1234yf(Canada)
YN-33-A(U.S.)
HS7Z-19B519-BA(Canada)
Motorcraft® R-1234yf Refrigerant POE Oil(U.S.)
Motorcraft® R-1234yf Refrigerant POE Oil / Huile POE pour frigorigène R-1234yf
Motorcraft®(Canada)
YN-34(U.S. & Canada)
Automatic Transmission
Note: Only use MERCON® ULV transmission
fluid for automatic transmissions that require
MERCON® ULV transmission fluid. The use
of any other fluid could cause transmission
damage.
Capacities and Specifications
Name
478
Specification
WSS-M17B21-A
WSS-M2C31-B2