It would have been best to ask this question in a separate thread.
You're confusing 'cling" with polar attraction. Stickiness or cling is the ability of a substance to mechanically adhere to other substances. Polar attraction is a "charge" (coulombic) effect.
Many of the oil additives are in ester form, such as ZDDP, the Boron compounds, dispersants , etc. so one does not necessarily need an ester base oil to make the total formulation more "polar."
Surfactants are "surface-active-agents," and may include chemicals to help spreading, clinging, etc. In ATF's we usually use a 'spreading' surfactant for wet clutch applications.
Olefin copolymers or OCP's are Viscosity Index Improver's in most engine oils and are 'clingy' themselves.
OCP's come in various ratios of
polypropylene to
polyethylene and are sometimes combined with PolyIsobutylenes (PIBS). A Tackifier, as is used in bar/chain oils, simply contain a different ratio of
polypropylene and
polyethylene combined with PolyIsobutylenes (PIB's).