zinc oil useage?

Bewy said

I doubt there is an engine oil today that does not have some zinc in it. The debate is how much is enough to give protection to engine parts......& it is not just FT cams that benefit from zinc.

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ALL engine oil MUST have zinc in some form and at some minimum limit or it's not engine oil.

Not sure about dual rated oils but using diesel oils in gas engines is bad policy. There is a reason why they make different oils for different fuels.

I mean, no one in their right mind would run out and buy Nitro 70 grade oil for their gas burning engine.

Same difference.