Main Street Shell Service 1204 East Main Street Santa Maria, CA 93454 (805) 347-0076 Main Street Shell Service is a full service auto repair shop and STAR certified smog check station in Santa Maria. We offer a full line of preventive maintenance services for your car or truck including radiator flush service. The radiator, along with a number of other essential parts that make up the cooling system, depend on coolant, or antifreeze which runs through the engine and absorbs a tremendous amount of heat. Old and contaminated fluid, or a buildup of harmful deposits in the cooling system could spell trouble. Be sure to care for your cooling system and help prevent overheating by having a professional radiator flush or engine coolant flush performed on your vehicle at recommended mileage intervals.