http://www.mainstreetshell.com/preventive-maintenance/power-steering-fluid-flush-santa-maria/ Main Street Shell Service 1204 East Main Street Santa Maria, CA 93454 (805) 347-0076 Main Street Shell Service is an ASE certified automotive repair shop and STAR certified smog check station in Santa Maria, California. If you've been experiencing steering difficulties or hearing whining noises, it may be time for a power steering fluid flush. This type of preventive maintenance service will restore steering performance and prolong the life of your steering system components. Main Street Shell Service provides power steering flush services 6 days a week, Monday through Saturday.