After a 100k valve adjustment, the tech tells me the valves needed adjustment and what I hear for 10 minutes in the morning cold is piston slap. He tells me not to worry.

Should I be concerned? When warm it runs like a champ.

05 v6

 

I think my '92 has that.
At 213,000 miles, I'm not worried.

 

Cold piston slap for ten minutes? Yikes, my 2001 V6 is up to full operating temperature within five minutes of a sub-zero cold start.