Pennzoil Conventional Motor Oil uses a traditional oil base fortified with Active Cleansing Agents that continuously prevent dirt and contaminants from turning into performance-robbing deposits. This helps keep engines clean and responsive. Pennzoil motor oil cleans out sludge with the first oil change and continues cleaning all the way to the next oil change. It is specially formulated to provide extra protection against the harmful effects of stop-and-go driving as well as high and low-temperature engine operation. This motor oil can be mixed with other synthetic and mineral oils and is for use in all vehicle applications under all driving conditions. It exceeds API SN and ILSAC GF-5 standards, ensuring high-quality performance and engine protection. Model Number: 550045208