The old Rover is leaking a lot of oil. Crankcase is pressurized beyond what the breather system can handle. It's done a lot of miles so just assumed worn rings, and was intending doing a full overhaul. But money is tight, so that will have to wait a while.
Someone said they'd had the same with head gasket problems. But it still runs as well as ever. If it were a head gasket, I could afford to change them.
Any tests to show definitively if it is a gasket problem or just worn rings? I did do a cranking compression test some time ago which was normal. As you'd expect if it runs well.