Helps reduce leaks and oil consumption. Active cleansing agents. Cleans out up to 40% of engine sludge in the 1st oil change (Based on severe sludge clean-up test using SAE 5W-30). From the maker of the leading motor oil in America, an advanced proprietary formula that lubricates, cleans and protects engines. Pennzoil High Mileage Vehicle motor oil with Active Cleaning Agents: Helps prevent sludge and other damaging deposits. Helps clean up existing sludge in your engine. Provides proven wear protection for engine parts. Pennzoil High Mileage Vehicle motor oil with seal conditioners: Helps reduce leaks and oil consumption. Compatible with engine seals and all oils. No leading high mileage oil helps keep engines cleaner, based on sequence VG sludge test using SAE 5W-30. No leading high mileage oil provides better wear protection based on Sequence IVA wear test using SAW 5W-30. Suitable for all car, SUV, light van and truck gasoline engines; under all driving conditions, for vehicles calling for API SN and all previous categories. Save resources. Please recycle used oil. For health emergencies or consumer information call 1-877-276-7285. Exceeds the requirements of the following industry specifications: Exceeds API SN and all previous categories. API Service SN: SAE 5W-30. www.pennzoil.com. Made in USA.