Shell Helix HX8 X 5W-30 is a fully synthetic motor oil that provides relentless performance, cleansing and protection for modern engines. It helps prevent harmful deposits that can lead to performance loss and reduces engine friction to enhance fuel economy. The oil actively locks away performance-robbing deposits, provides excellent wear protection, maintains protection throughout the oil-drain interval, and has enhanced low-temperature performance for quicker engine warm-up. It is suitable for gasoline, diesel, and gas engines, as well as biodiesel and ethanol blends, and protects against low-speed pre-ignition in direct injection turbocharged gasoline engines.