slight smoke when warmed up

[royz]

as per the title my car has started to smoke slightly when its warmed up and only if im sat in traffic. it has only just started to do it today but not sure why it only dose it when the car is warmed up. could it be the oils getting to thin? im due to change it as its covered around 3K since i last changed the oil but worried there may be other issues. from what ive seen today it takes around 30 mins before it starts to do it. any advise as its got me stumped

[J$£5GTT]

http://www.rtoc.org/boards/showthread.php?t=17440&highlight=smoking

[Brigsy]

Turbo might be a bit tired, check for play in the shaft

[royz]

just had time to check the turbo for play today all is well( it was only rebuilt a year ago). gave it a good run out and all now seams fine? so not sure what to do next apart from do the oil change and see if it returns at some point.