When it comes to the care and finish of wood frames, there is a multitude of different woods you can use for the frame. But for a general rule, the type of cleaning does not vary radically based on the wood frame you have in your home.
You first need to be aware of window sweat. In certain environments and humidity, your window will actually sweat! Since windows are not designed to keep the UV out, this will cause water to perspire on your frame. Why is it important to maintain your wood frames? If you do not take care of your wood frame, this window sweat will actually damage the frame drastically. When wood frames are not cleaned and left unattended, the wood frames will tend to stick more aggressively and not be easy to operate. And the more aggressive the stick on the windows, the harder they are to clean!
There are plenty of lubricants and stains you can use to maintain your windows. Some are industry standard and others are trade secrets. Here is a list of lubricants and stains you can use on your wood frames: