Hey guys,
This is my first post and it is about a couple of issues that I've been having on my 2006 2.5s.
Issue 1: there is a bit of a puff of thin grey smoke coming out of the tailpipe on cold startups. It does it momentarily for 30 or so seconds, but when I back out and drive off. It doesn't do it... I keep thinking that it's a head gasket issue, but I don't know. Any suggestions on what to do? The car only has 68k miles on it, and I'm the second owner. The previous never had a problem with that tho..

Issue 2:
When at idle, every now and again it will begin to idle rough and at about 600 rpm. Idk if that's normal or not. Any help would be greatly appreciated

maybe the two are connected somehow.. The idling I can deal with, but the smoking has to stop, cuz it keeps worrying me.
Any help on suggestions would be great. Thank you.