Buying the origional LR spec pas fluid for a FL2 ain't easy. Fuchs titan chf 202 is the same fing. Its what I use. The red you have in needs removed or you'll get problems. Change the reservour at the same time. Its got a fixed filter in the...
I’d be flushing it PDQ, several times, with the correct PS fluid, and keeping my fingers crossed.
Also change the reservoir bottle when you do it - it has a small filter inside.
… I s’pose it ‘could’ be just very old green fluid that has turned...