I didn’t say that at all. What I said was too much zinc in the oil compromises the components used in the oil and how much of what component can be used.
That’s why I said too much zinc can be a bad thing. It’s not only a power killer it makes compromises in the oil that you may not want.
Where's the proof? Where's the evidence that points to zinc being 100% equivocally responsible for any form of engine damage whatsoever? And I mean BEYOND A SHADOW OF A DOUBT. I want to see it.