Well,
I've taken it to the dealer and after $85 they checked the cooling system. Dealer service never seize to amaze me. Service writer waited till I called him and said he was just going to call me

about my car, there is no leaks and they checked the cylinders with the “boroscope” and it showed nothing either. When I asked him if they’ve seeing anything unusual inside the cylinders, he said they actually did not “boroscoped” it but recommend to do that @ $275 a pop. I said forget it and came to pick the car up that evening. So far it holds the same level as when I got it from the dealer. I made a mark on the coolant reservoir on hot coolant. Will keep yall posted.