I thought I should also note I think it boils down to whether there is any measurable benefit from an oil that has some superior attributes but costs 2x as much. According to the engine manufacturers, a good quality fossil oil, changed at prescribed intervals, is entirely sufficient, so each of us needs to decide whether some measure of "better" is worth the cost.
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Sean
If Ain't a Newell, It Ain't Wurt Oonin!
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