The pilot program that Shanghai Bashi Group No.1 Branch carried out to extract bio-diesel from gutter oil in kitchen garbage and use it as hybrid fuel for buses has recently passed experts’ review. As introduced, the bus operator has applied the fuel technology to 100 buses on ten routes. Since September 2013, the bus operator has been collaborating with Shanghai Food Safety Administration and Tongji University in making renewable diesel by grease exchange technology from kitchen garbage oil to replace fossil diesel. As tested, buses operating on “gutter oil fuel” are performing almost the same as those running on conventional fuel while the particulate matters in the emission have been reduced by about 10%.