I leased this car just before pandemic shortages came about. Since I wasn't driving much during the pandemic, but I still went in every 6 months, oil changes were done pretty frequently early on. First oil change at 2000mi, then at 4500mi, 7800mi, 12000mi, and pretty much 10k on the nose after...
I am aware of markings on the bottle being significant so I recorded them.
RN6676 - blend number? I believe this is a Mobil thing.
10225B28A - manufacturing lot number?