At the risk of stating the obvious, try a new cap and see if that does it. Make sure the dips5ick is in properly too....

I'm assuming the reference to screenwash has nothing to do with the question, just setting the scene, as it were ? Or could we imagine oil emerging from the screenwash filler .... :-)

thanks guys - and yes don't worry the screenwash was just setting the scene ;-)

I don't think overfilling was the reason - (it was last done at Service rather than by myself) as it seems to have occurred more than once and recently - Service was back in March.

I've treated myself to an official new cap from Nissan so will see how it goes, hopefully it's as noddy as that but I was curious whether oil should ever get that high

Cheers