A litre of mobil1 0-40 sorted that out, phew!
Was v strange, got in the car and fired up to go to halfrauds and the pressure was fine. Only difference was parked uphill instead of down when i noticed the issue, guess it was teetering on the edge.
Checked it a 1000miles ago, so burning a little but it is thin oil. Very happy to have that pressure gauge in now
@ BMCC, no oil pressure ligt anymore, the pressure sensor was replaced for the one with the gauge. Gauge or nothing for me now.