Well done, Shiney- thanks for that.
The stopping thingie is a BRAKE not the thing you have which suggests the thing is broken.
I do the 12000 kay interval oil changes (usually less) and, like Langer, some always gets spilt. I hate having the garage floor marked, so clean it up ASAP and it hardly leaves a mark. This time I was extra careful, putting down multiple thicknesses of newspaper, and caught more of the spill than usual. But I'd been a busy bad lad and didn't do the change until 14000 kays. The oil defied my newspapers and some got onto the concrete. It has left an ugly mark, despite my energetic efforts with degreaser and petrol. The oil seems to be thinner and blacker, and has gone right into the concrete.
Apparently 12000 kays is the limit because beyond that the oil changes, and obviously for the worse. It sure is blacker. Nothing else was different- I have only used Shell Helix HX5 15W 40 on the STs.