AJERO SAE 15W-40 API SN/CJ4 is state of the art technology formulation specially designed to meet therequirements of Euro 4 and Euro 5 compliant heavy-duty diesel engines. Its higher viscosity index helps to provide better protection during start up as oil is able to reach all parts at shortest time possible. SAE 15W-40 API SN/CJ4 provides high durability of protection and oil-life which offers additional benefits to operators of vessels or vehicles fitted with exhaust particulate filters. Higher base number of the products neutralizes acidic materials created during fuel combustion resulting in better protection from corrosion & reduction in sludge formation. It is manufactured with high safety measure and quality control according to ISO 9001:2015 standard. Shelf life provided is 3 to 3 1/2 years.