2016 USED COLUMBIA GLIDER WITH S 60 SERIES

It could be a dropped liner. Key word is could. Honestly its likely, but let's rule out all the easy and cheap stuff first. To many mechanics get tunnel vision. They get an idea and theur brain focuses on it over looking everything else. Im guilty of this at times to.

Get that oil sample done and go from there.

 

I had a very similar issue. If it was cold outside, I could fill the parking lot with smoke and it would smoke all day. A good friend recommended an injector cleaner and after running 4 gals, truck hasn't smoked since. (It's been a week) The truck sat for 4 days over the weekend and I was sure it was going to smoke like crazy, but barely anything. Just food for thought, but you might want to try 2 bottles.

 

LOL. That was my truck last weekend before I ran the cleaner through. It's not cheap, like $30/ bottle and I ran one in each tank. But I'm not losing coolant and I go through a gal oil every 20,000. But I also had a compressor leaking oil.

 

I don't want to alarm you just stating this as a possibility. It's one possibility of dozens.

My ddec iv was doing that on cold mornings and it ended up being a bad valve job from the machine shop i had redo the head.

 

I didnt read the whole thread, but where are you located?