What are the types of oil used in maintenance?

In maintenance, several types of oil are commonly used, including mineral oil, synthetic oil, and biodegradable oil. Mineral oil is derived from refining crude oil and is often used in machinery and engines. Synthetic oil is chemically engineered for improved performance and longevity, making it suitable for high-performance applications. Biodegradable oil, made from renewable resources, is increasingly used in environmentally sensitive areas to reduce ecological impact.