tis still there and its oily smell. only does it for a second or two. am thinking valve guides as i changed the top hat stem seals about 500miles ago. fitted brand new turbo last week. the amount of smoke is only visible if you look for it. i saw someone have stem seals go after 200miles so im not ruling that out. doesnt use any oil nor water so may fix when its convenient rather than panic about it, what you reckon?