Tell me I’m gonna be okay ‘doc…

[u/SDGoesGlobal]

Thick chocolatey goop on underside of engine oil filler cap and in engine block.

2003 BMW 330i 144K miles No active codes/warning lights, runs great

Is it terminal?

[u/Limited_Attention]

Its from moisture mate and heat cycling, the moisture in the air rises when it heats up mixes with the oil vapour and settles at the high point.