Your Shredder Joe SDJ616 is completely maintenance free, with no gas, oil or tune-ups needed, making it effortless to start and maintain for many seasons to come. If there is ever an issue with your Shredder Joe SDJ616, please contact Snow Joe® + Sun Joe® Customer Service 1-866-SNOW JOE (1-866-225-9723) (Monday through Saturday 10am-6pm EST).