I think the quantity and thickness of oil on friction surfaces is more than just the ratio. It'll depend on how well the oil is sticking and sticking together. I run Putoline MX7 at 50:1 and when I do a strip down I'm always surprised how much oil is clinging to everything but very little carbon on the crown or head. I only wish that Amsoil was easier to get over here because I'd love to try running even less oil.
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