Originally Posted by danimal
... dropping a cap ring there would be much less catastrophic than down into the oil pan, and much easier to retrieve.
So, I have learned a couple of things from this and thought I would share them. First, only put oil in where it is supposed to be. Use a funnel, or in lieu of that, make sure to remove the cap ring as well. Count your bottles, caps, AND RINGS when you are cleaning up. If this saves one engine...it’s worth it.