smoke?

like this guy?

BMW Engine Crash - YouTube

almost as bad as when me and my friend did seafoam in his v6 nissan maxima 1998 with 156k miles... used half the bottle through the vac line, barely got it to stop. only by cutting off supply on vac line. and put the rest in gas tank. but it was a the biggest smoke show...car is a beater and the smoke was horrific and smelled like shitt. drove around and there was huge trail. thank God there were no cops at the time.