These are heavy-duty, high-performance synthetic engine oils developed for use under extreme operating conditions in both high-temperature and low-temperature ambient environments. They are fuel-efficient and offer long drain stability in areas where frequent oil drains may be difficult or impossible. Maxxum oils utilize the same proprietary additive chemistry as our Titan line for unsurpassed carbon deposit and oil consumption control characteristics. Their proprietary blend of synthetic base oil technology provides unsurpassed engine cleanliness.