Sorry if this is stupid question but I a paranoid uneducated fuck car wise.. I done plugs and oil in skyline there using ngk iridium plugs and mobil 1 15w 50 motorsport oil I just bout filled car wit oil as normal and added some lucas oil stabiliser to it too not exceeding max on dip stick.. When started car oil pressure went to 6kg/cm no the factory guage.. When hot and idling it dropped to 3kg and when took for spin it was at 7 or 8kg have I anythin to worry bout just over took notice of pressures before and I freaked now.. Sorry again guys