Castrol Gearbox Oil question

Hi guys,

i previously brought 2.5 litres of Castrol Syntrans FE 75W oil for my focus RS (recommended). Unused yet, im curious whether this stuff would be okay for the clio?

i'm noting that the clio's grade is 75W-90. the same as the Focus RS but this oil is suited for ford transmission but im intrigued whether this type or grade would be suitable for the clio's box as ive noted about notchy/crunchy gear changes this oil is designed to address that and also better suited for cold start changes.

cheers,