Integrating service learning with undergraduate research, the student biodiesel project converted all waste vegetable oil (WVO) from campus dining centers into a sustainable biofuel used by campus vehicles, allowing half of the campus diesel energy needs to be met by a material (WVO) that was formerly a waste. Biodiesel reduced air pollution from campus diesel vehicles, including the emission of greenhouse gases. This project connected students to their community and increased students' awareness of the "social/economic" aspects of environmental challenges in the world around them. Students felt a "great sense of responsibility to make a real product that would make a difference" in the real world. Students who participated in the research course became teaching assistants for another regular course in which biodiesel production was a component. This allowed biodiesel to be produced sustainably and provided additional students with hands-on bioenergy experience. Specific challenges and suggestions for future practices are also reported.