OK - worst case scenario so far.
Called stealer, reckons synthetic <540 thickness.
Went to car park checked level - didn't even register on dipstick.
Manual reckons VW 502 00 or VW 500 00. Might as well be chinese to me.
I'm up for semi-synth to keep it until Monday. How much will I need?
Left the office, walked into town, Halfrauds closed down, Gasoline Alley closed down. In a moment of genius - PoundLand! They did have some but it was generic "formula 1" ..no more information. I think not.
Looking like a taxi to a petty station for me.
EDIT: There was 1 beep - like a washer fluid warning. and the oil light is yellow\orange.