TECHNOL STORM 15W-40 has been formulated with highly refined mineral oil and high quality additives to fulfill the requirements of on-road trucks and buses equipped with diesel engines. This engine oil has thermal stability and resistance to oxidation and corrosion that reduce deposit and harmful acidic by-product formation and enable extended drain intervals. Thanks to its detergent, dispersant and antiwear properties, this engine oil ensures engine cleanliness and provides protection for the moving components of the engine. It is recommended for use in the previous generation of diesel engines of different manufacturers.