Was changed in 2014.
Mar 12 2014 4717 -2014 Fusion and MKZ Hybrid/Energi - Oil Viscosity Specification Change
The oil viscosity recommendation of 5W-20 on the oil fill caps on some 2014 Fusion and MKZ Hybrid/Energi vehicles may appear to conflict with the owner guide and other service publications which recommend 0W-20 oil. Both 0W-20 oil and 5W-20 oil are approved for use in these vehicles.