[Formulajones]

Corrosion would be the one big concern. As mentioned conventional oils have still shown corrosion problems from sitting which is likely why some boutique oils felt they needed a formulated oil just for that purpose.

As to your other question, when and how long, that's what the OA's are for, great for determining things like that as well as change intervals, filter effectiveness and whether the oil is doing what it's supposed to be doing, which is why I mentioned I'm interested in seeing the different results. It's really the only concrete way to answer those types of questions.