BIODIESEL_028_KW_.jpg
 Ash Brecken, environmentally conscious customer, fill up her car with biodiesel, a fuel produced from new and used vegetable oils at Biofuel Oasis in Berkeley January 31, 2007 one of the area's only biodiesel station.
 Kat Wade/The Chronicle Mandatory Credit for San Francisco Chronicle and photographer, Kat Wade, No Sales Mags out Photo: Kat Wade