This is a full synthetic heavy duty engine oil that has been classified as LONG DRAIN. This product can be used in passenger car diesel engines, trucks and off road equipment. The full synthetic base oils ensure a stable viscosity index, easy cold start properties and very long drain intervals. This ensures optimal fleet usage all year long. This product is suitable for EURO IV and EURO V engines and substantially reduce the emission exhausts. Due to the high ash content, this oil is not suitable for most engines and vehicles equipped with a particulate filter.