So i ended up buying the Engine Flush:
https://www.amazon.com/gp/product/B00C ... TF8&psc=1
and the Cera Tec Friction Modifier from the link:
https://www.amazon.com/gp/product/B001C ... UTF8&psc=1
I will do the oil change tomorrow and see what i think after a week or few weeks.
My Infiniti Dealer game me two years of free oil changes "regular oil" I switched to Pennzoil Platinum Synthetic after i used all my free ones, and now doing the oil changes myself. The switch was great, the engine felt lighter more lubricated. But then i switched to Pennzoil Ultra Platinum and it was a noticeable difference and less engine noise. I always follow the oil changes to the dot. 5k miles or 5 months "today i'm already at 5 months with 3,420 miles