If you look at synthetic under a microscope, the molecular structure is all identical in size hence why it finds its way out of the old seals ,gaskets etc don’t recommend :popcorn:
I'm assuming since he saying "after break in" this is a brand new build and doesn't have old seals...
I'm going on over 5 years maybe even 6 and no leaks drag racing and all kinds of torture.. :popcorn:... 30w penngrade break in oil and 15-40 penngrade ever since...
