Magnesium oxide is usually not used as a gasoline additive. Gasoline additives include antioxidants, cleaning agents, friction agents, and other components, with the main purpose of improving the performance and cleanliness of gasoline. Compared to this, magnesium oxide is mainly used in high-temperature reactions, fire prevention, waste incineration, and other fields. It can be added as a filler to plastics, rubber, paints, and can also be used to produce materials such as magnesium oxide ceramics and strong magnets.