Bio-lubricants are made from vegetable oils such as rapeseed, canola, sunflower, soybean, palm, and coconut oils. They are also known as bio-based or bio-lubes. The best applications are for machinery that loses oil directly into the environment or is used in sensitive areas like near water, and include two-stroke engines, chainsaws, railroads, and marine uses. Bio-lubricants are highly biodegradable, produce fewer emissions, and offer better safety than conventional lubricants. However, they can have bad odors if contaminated and lower viscosity at cold temperatures. Overall, bio-lubricants are more environmentally friendly but more expensive than conventional lubric