Most new cables are coated with some sort of flexible plastic coating to slide easily within its outer metal sheath. Old stile cables were never coated, easily rusted always in need of some lubrication and if not used on a regular basses became one with their outer sheath over time; well that's the result here in the NE with ice melt chemicals slathered on our winter roads.
I would not lube the inner cable if coated. Mrs. wjajr's '07 Nitro has 150K on the clock with nine ice-melt rusting winters under its belt, and hand brake works with no problem, and only used once a year when state inspection is performed. Ok, so that's probably falls under regular use.
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67' Dart GT Convertible; the old Chrysler Corp.
82' LeBaron Convertible; the new Chrysler Corp
07' 300 C AWD; Now by Fiat, the old new Chrysler LLC
