No oil light flickering it was before I changed the oil pressure valve now everything seems to be ok apart from the pressure dropping when standing still. Yeah has a mechanical pressure gauge running from a sandwich plate. I drove the car today about 5 miles to work and back and the pressure stayed above 1 bar until I stopped let it idle for ten mins it started to drop. If you have what's app I can send videos or feel free to come and tyre kick the fuck out it haha.