Thanks, I had a look at the pipe last night before the EGR, I can see oil deposit here not nothing heavy.

Should I let the car run for a while and monitor the oil? This could still be the residue oil still remaining?

Knocker, how bad was the smoke from the back? Was it heavy blue smoke?

I can't help thinking that I didnt run the vehicle fully warm and test....in the hope I burn off any oil that still subsiding

Cheers