Well the gearbox oil problem seemed to be ok until my wife went on another motorway trip last night, same thing again, oil blowing out of the breather pipe and a small pool on the floor in the morning.
I've already removed the breather pipe and cleaned it thoroughly, the only bit I didnt...
Drained the box and re-filled it with the correct amount (2.6L) and put a catch container on the end of the breather, just have to wait and see what happens.
The wifes micra appears to be blowing quite a lot of gearbox oil out of the gearbox breather pipe, I have removed the pipe and checked that its not blocked (which its not) but its still doing it, I had to put 1 litre of oil in the box yesterday to bring it back up to full level. Any ideas what...