HD FULLY CK4 5W-40 is a fuel conserving super high performance “MID SAPS” oil, designed for high loaded diesel engines in light and heavy commercial vehicles working under severe operating conditions through the whole year and running on low sulphur diesel fuel (max. 50 ppm). ENGINE OIL SPECIAL UHPD 10W-40 is formulated for use in Euro 5 and Euro 6 engines equipped with Diesel Particulate Filter (DPF). This product is also suitable for vehicles equipped with EGR and/or SCR after treatment system. HD FULLY CK4 5W-40 is formulated on high refined 100% synthetic base stock in combination with an special additive package to reach the following properties.