Pennzoil® high mileage motor oil helps clean out the sludge lesser oils leave behind, while helping to reduce leaks and oil consumption in worn or higher mileage engines. Pennzoil® high mileage motor oil is a Pennzoil® conventional motor oil that has been enhanced with a unique combination of special conditioning agents and additives to help stop leaks from seals and reduce the oil consumption that is typical of older, worn engines. It's a high mileage oil specifically designed for new or late model vehicles with over 75,000 miles, with the mission of keeping engines running clean and going strong.