Sorry to jump in on this thread but just a quick question - had my PCV CHANGED AT VW Nuneaton last week and they topped up with a litre of oil - invoice said they used "Helix HX7 10W-40"?
Is this the wrong oil then?
I hope you didn't pay to have your PCV changed? It's very simple to do at home
![happy2 :happy2:](https://www.mk5golfgti.co.uk/forum/Smileys/newsmileys/happy2.gif)
I don't think the Helix oil meets the requirements of 504 etc. They should have used Castrol Edge 5w30
![happy2 :happy2:](https://www.mk5golfgti.co.uk/forum/Smileys/newsmileys/happy2.gif)
To put your mind at rest, that oil won't do any harm (oil is oil after all - and it was only a litre).
Just to note: if they got a litre in, your oil was on the minimum level
![surprised :surprised:](https://www.mk5golfgti.co.uk/forum/Smileys/newsmileys/surprised.gif)
- check your oil regularly as it won't do your engine any good to be low on oil