yea and a big difference, Pro race bikes are overhauled every night, after the day's racing..

Maybe the OP can spring for a Nickel plated chain to not have thje link plates rust so easily the lube may be adequate

if there is enough to wet the underside of the roller , both sides of what bushing there may be , and the pins.

regular rainfall, downside of living on the equatorial Tropics.