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The UOA from Cat or anyone else won't tell you if the oil film is breaking down because of foaming. Foaming is a physical issue ,not chemical. That is why foaming is so difficult to understand and requires both mechanical knowledge of the M96 and tribology to adjust the foaming with additives. Real dry sump flat engines don't have this issue -sigh.
If an M96 fails due to a lubrication problem, how would you know if the cause was lack of shear strength in the oil or just foaming of otherwise 'good' oil? As a foam, oil has negligible shear strength but an unaerated sample of that same oil could show acceptable shear strength.
I suppose you could insert a borescope-camera above the oil level in the sump immediately after engine shut down ?
Alternatively just choose an oil with 'plenty' of silicone and a bare minimum of detergent ? Hopefully people like Lake Speed and Jake will get a well funded R&D contract from a generous oil sponsor to figure it out ! Without such tests to define specific levels in the additive package, it is all mere conjecture to mutter about silicone and detergent.Mea Culpa.
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