the wood really doesnt care, as long as its protected by an oil that is meant for wood... I have had the best luck with lemon pledge in the spray can vs the bottle, because its a thicker oil... I spray it on heavy and let it soak in a couple of days and then I wipe it all down and spray it again ... and again until it doesnt uptake any more... then i know the wood is as protected as its going to get without a tarp or shed roof.
it works the same way with the teak on the inside of the boat.
just wiping teak oil on every month or so does NOT give the wood all it should have for the best protection, and it does like a good soaking.
or several applications wiped on every few hours over a multi day period... once you get it soaked up good with oil you can back off a bit, as most teak on older boats has been neglected over the years.
teak needs its oil to maintain its good looks and durability. so a good soaking to restore its lost oils is the best thing you can do for it.