Light grease with moly works well, like lithium stuff.
Or hypoid gear-oil, which has ET/EP additives that motor-oil lacks.
That's why motor-oil doesn't work well for chain lube. Honda recommends 75w90 gear-oil for lubing chains because that's an easy source for ET/EP stuff that does hard work in contact situations. Many of boutique bicycle chain-lubes are just re-packaged gear-oils.
Fortifying either with graphite should help longevity when lube dries/drips out.
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