The sticker on my windscreen says 180,000 K‘s or at six months which ever comes first. My question is this. How strict is the six-month interval. it’s synthetic oil which is meant to last better than spirit oil. Is a few weeks beyond the date okay or should I be putting it in ASAP?

Coming up for the 4 year service and our car has only done 45,000 km.
No issues although I still have the jerky throttle response directly after a cold start for the first 200 metres. Occasionally the jerkiness does not occur and driveability is much better and average consumption for the first...