BMW 545i White Smoke on Startup & Idle – Magnaflow Exhaust

So my 545i has been doing this lately. Seems to be the valve seals. It is a big job to get those changed out, so I’m going to experiment with a thicker oil, 10w60 synthetic and see if this will help. I will update in a new video.

2004 BMW 545i, 83k miles, I purchased from Olympic Motors, Florissant, MO. Smoke out of the tail pipe upon startup. July 15th, 2011
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