What oil can be used to lubricate doors?

For lubricating doors, WD-40 is a popular choice due to its penetrating properties and ability to displace moisture. Silicone spray is another Excellent option, as it provides a long-lasting, non-staining lubrication that works well on various materials. For a more natural alternative, mineral oil or even olive oil can be used, although they may not last as long. Avoid using heavy oils like motor oil, as they can attract dirt and grime.