Shell Morlina S4 B 680 provides protection in the most extreme environments, which makes it a must-have for "lubricated for life" systems, highly loaded bearings, cement and quarrying operations, and much more. This high-performance synthetic oil is designed to prolong time between maintenance operations, resist the formation of harmful byproducts of oxidation, and protect against corrosion and wear. Because Shell Morlina S4 B 680 is incredibly efficient and can be used in fluctuating temperature ranges, hot or cold, it's the perfect choice for protecting your investment.