Superior Diesel started as a fuel shop in 1967 and today has grown to become a business that also provides repair services. Its services include engine overhaul and repairs, fuel injection repairs, governor repairs, transmission overhaul and repairs, stern drive overhaul and repairs and Volvo Penta IPS overhaul and repair. It also has an inventory of parts from approximately 90 different vendors in its 37,000-square-foot facility. Its parts include engines, transmissions, engine controls, turbo chargers and more.