Abstract
The environmentally friendly products are developed in various fields as the consciousness to environment increases. The biodegradability lubricating oils continue to compete with traditional petroleum-based oils and greases in the marketplace. Biobased products, e.g. vegetable oils and the ester, can help protect and preserve the environment. Vegetable oils are renewable resources and can contribute to the issue of global warming. In addition, they are excellent lubricity and high viscosity index. I'd like to now focus on regulations and a trend of biodegradability lubricating oils and expect the future.
