Turning Trash Into Fuel: How Your Cooking Oil Becomes Biodiesel

Your old frying oil has a new purpose—it can help power vehicles and reduce carbon emissions.

Once GreenOil collects used cooking oil from schools, we send it to a biodiesel refinery. There, the oil goes through a chemical process called transesterification, transforming it into a clean, renewable fuel.
Biodiesel works in regular diesel engines and produces up to 86% fewer greenhouse gas emissions than petroleum diesel. By recycling oil, you're not only keeping pipes clean—you’re helping fuel trucks, buses, and even farm equipment in a sustainable way.