Well guys (Steve) I'm back. I really need your guys to put on your thinking caps. With less than 500 miles after the oil change, still getting the antifreeze smell from the exhaust on first start up. No more milky build up on the oil cap but I haven't let the wife drive it (she only knows 80 mph on the NJTP). Just the weelky commute to the office 30-35 minute suburban drive.

What are the ways antifreeze can get into the exhaust manifolds?

Thanks

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2001 X5 3.0
1989 325is
2005 Altima V6 (wife)