Keeps your engine clean and responsive. Pennzoil Motor Oil Provides: Penzoil: Unsurpassed wear protection (Compared to industry standard). Protection in extreme temperatures. Better fuel economy (Compared to a dirty engine). Protects horsepower. Cleaner pistons (Compared to industry standard). Formulated to meet or exceed: Manufacturer: Chrysler; Specification: MS-6395. Manufacturer: Ford; Specification: WSS-M2C946-A. Meets or exceeds the requirements of ILSAC GF-5, API SN Plus, API SN and all previous categories.