Right Gearbox Oil for manual TDCi models?

[RadioactiveX]

Hi guys,

I have a 2011 Ford Focus TDCi LV 6MT. Just wondering if anyone has any ideas which is the right gearbox oil spec for this model? There seems to be a bit of contradictory between resources. On the workshop manual for Focus LV, it says its WSS-M2C200-D2. But on the service guide booklet it says its WSD-M2C200-C. This spec is also found on LT

I understand that WSD-M2C200-C is a GL-4 75W-90 and WSS-M2C200-D2 is a thinner spec, GL-4 FE 75W.

Does anyone know if the D2 can really be used without problems?
Thanks