Thanks gents. Jacksonracing, not sure what you mean. The oil line setup is stock as far as I can tell.
Might be optical illusion but tin plate in pic looked like it's attached to feed bolt.
First impression is leak is from that joint not the hose itself
Whichever way, OE crimped hoses have been well known to leak, I use -3 SS brake hoses here but I'm sure any of suppliers have ready to go kits.
Tighten with hose well clear of fins, use new washers