It sounds normal. You get more smoke when its cold. As long as it clears up I wouldn't worry too much.
Hmm cheers mate will bear that in mind if it doesn't improve as I have an Opie account, spend hundreds with them every year lolmine was like that on cold but since using this it seems so much better now and mileage has gone up abit
http://www.opieoils.co.uk/p-60222-millers-oils-diesel-power-ecomax-fuel-treatment.aspx?utm_source=ProductSearch&utm_medium=GoogleBase&utm_content=60222?utm_source=ProductSearch&utm_medium=GoogleBase&utm_campaign=GoogleBase_ProductsFeed&utm_content=67611
That's a bit more worryingmy 4motion does it too mate, clears once it warms up
dont worry unless its all the time