Hi everyone, last week I bought a bottle of seaform engine treatment. I followed the instructions to clean the intake & crankcase. They said there would be some carbon blowing out the tailpipe, but every time I start the engine forthe first couple of minutes white smoke comes out. It's only been a week, will this go away or is something else wrong like maybe an oxigen sensor. It's not black smoke, but almost a blueish white.Has anybody else experinced this?