HD CI4 15W-40 is a high performance semi synthetic engine oil to be used in diesel engines in light and heavy commercial vehicles with or without turbocharger. HD CI 4 15W-40 is designed for use in Euro-II, Euro-III and EURO-IV emission requirements and engines equipped with EGR and /or SCR ex- haust after treatment system. HD SEMI CI4 10W-40 may not been used in diesel engines equipped with a Diesel Particulate Filter (DPF). Suited for Scania engines which require a LDF-3 performance oil HD CI4 15W-40 is based on high performance synthetic base oil in combination with especially selected additive technology to ensure the following properties.