Red is usually auto boxes but what I'm saying is what ever you had before is more than likely to be Green stuff?
I've ran 8V 16V both on green and had no issues at all!
I use plain old Comma CHF 11S
What I will say is to drain from the pump and resivor and try and get as much of the old stuff out before refilling.
You find that the pipes might have got bits of seals in it due to the fluid being so old!