WD is not a lubricant but still a useful product. It has water repellent properties that are second to none and will put a coating over metals to stop corrosion. Superb assembly lubricant and will protect those parts that you never see with the thin film of oil. And great for softening those bits of crud that take ages to scrape off parts. I use a lot of it and buy in 5 litre cans nowadays and saves buying those very expensive spray cans that always seem to be empty when you need it.