Vegetable oil is a type of oil that is extracted from different types of fruits, seeds, grains, and nuts. It is a mild, odorless, flavorless, light-colored cooking oil that is good for cooking, frying, and making salad dressings. Vegetable oils are mainly used in cooking as salad dressings and for frying. They are also used as an ingredient or component in many manufactured products, such as soaps, skin products, candles, perfumes, and other personal care and cosmetic products. Vegetable oils are used to make biodiesel, which can be used like conventional diesel. Some vegetable oil blends are used in unmodified vehicles, but straight vegetable oil, also known as pure plant oil, needs specially prepared vehicles that have a method of heating the oil to reduce its viscosity. Vegetable oil can also be used as a replacement for various products around the kitchen, garden, and home, such as lamp oil for emergencies, rust prevention, and lubrication.