Something is wrong if the chain is showing corrossion on a daily basis in the winter. The vinegar bath may have caused some initial issues that just can't be fixed with a good oiling.
I ride all winter through the sand/cinders/deicer and salt (finally!) that gets used up here, and just a weekly cleaning with mineral spirits, a good drying, and re-lubrication with Finish Line Wet (the green, high viscosity stuff) has kept my chains in excellent working condition.