Dogpatch Biofuels is a sustainable biodiesel filling station. We're San Francisco's first and only public, retail biodiesel-specific filling station. We offer B99.9 biodiesel from local and recycled sources. Why biodiesel? Click here! We are also an official residential used cooking oil collection site for San Francisco Greasecycle. Proper oil disposal can save millions of dollars for our city's public utilities, and Greasecycle helps turn your waste oil into biodiesel. You can drop off your used cooking oil in a non-breakable, sealed container at Dogpatch any time.