Health advantages are claimed for a number of specific oils such as omega-3 oils, evening primrose oil, olive oil, and coconut oil. Trans fats, often produced by hydrogenating vegetable oils, are known to be harmful to health. Hair
Oil is used on hair to give it a lustrous look. It helps to avoid tangles and roughness to the hair. It also helps the hair to be stabilized and grow faster. See Hair conditioner. Anointing one's head with oil is a ritualistic practice in many countries. Fuel
Almost all oils burn in aerosol form generating heat, which can be used directly, or converted into other forms of fuels by various means. The oil that is pumped from the ground is then shipped via oil tanker to an oil refinery. There, it is converted from crude oil to diesel fuel (petrodiesel), ethane (and other short-chain alkanes), fuel oils (heaviest of commercial fuels, used in ships/furnaces), gasoline (petrol), jet fuel, kerosene, and liquefied petroleum gas. Electricity generation
Oil and any of its more refined products have been used to create electricity. This can be done by means of a steam engine, or by means of a turbine driven by exhaust gases. A steam engine turns the thermal energy into rotary motion, which can then be transformed into electricity, by means of a generator. In an exhaust gas turbine, the combustion products from burning the fuel expand, thereby turning a turbine. The turbine is coupled to an electrical generator. Lubrication
Due to their non-polarity, oils do not easily adhere to other substances. This makes oils useful as lubricants for various engineering purposes. Mineral oils are more suitable than biological oils, which degrade rapidly in most environmental conditions. Painting
Color pigments can be easily suspended in oil, making it suitable as a supporting medium for paints. The slow drying process and miscibility of oil facilitates a realistic style. This method has been used since the 15th century....