Thanks for the reply Stuart.
A little while after a drive, 30 min or so after. Reason I ask is: I've got a little bit of a vibrate at idle and the engine is now a bit "loud", it sits nicely at 800rpm, no codes. I'm just exploring options really mate, thinking pcv, oil pressure low etc...
Last oil change 100 miles ago.
Power is still there just sounds a bit off. (It's hard to explain really)