I've only used the Mobil 1 Euro Full Synthetic 0W-40 once over all my years. I know it's popular here that was why I posted as soon as I got home.
I still stood there for a couple minutes trying to decide if I should get some to use in anything including OPE. Maybe 1-2 years from now I'll say dang I should have just like when I got a good price on some 1000 round ammo boxes at start of Covid.