Pennzoil motor oil actively cleans out up to 40% of engine sludge in the 1st oil change. Multiviscosity, multi-grade. Exceeds the U.S. warranty requirements for all domestic and imported passenger car and light-duty truck engines. High-temp protection and fuel economy for high-revving 4, 6, and 8 cylinder engines (even turbocharged) as well as older, high-horsepower engines. Specially formulated to protect engines during the stress of cold starts and short trip driving. For gasoline, diesel, and turbocharged engines. Meets or exceeds the requirements of the following industry specifications: Exceeds API SN and all previous categories, and ILSAC GF-5. Meets Chrysler MS-6395, Ford WSS-M2C946-A, and GM 6094M.