Supreme Plus. For Gasoline & Diesel ACDelco Supreme Plus is a fully-synthetic engine oil formulated to provide better vehicle performance, for use in passenger car and light truck engines under all operating conditions. Built to improve fuel economy and to provide complete engine protection. Performance Standards: API SN/CF ACEA C3-12 Meets the requirements of: Chrysler MS-6395, Fiat 9.55535-CR1, Ford WSSM2C946-A, GM 4718M, GM 6094M, Mercedes-Benz MB 229.51, Porche Oil category A40, BMW-Longlife-04 *By request/order.