Aproperty at which I do first line maintenance has 2 large exterior oak doors, anything between 200 - 400 years old. The exterior of the prop has been redecorated but not the doors. They now spoil the look of the place. The doors have been treated with something at some time, the top third (Unweathered) is a golden colour, most of the rest bare oak, and the bottom 6" grey coloured due to weather.
Any suggestions for restoring doors to uniform finish. Danish oil or linseed oil has been suggested as a finish, and using bleach on bottom weathered part to lighten it.