Ultra High Performance Diesel (UHPD) engine lubricant for severe use. IGOL PRO 400X complies with the most stringent standards in force and is designed for use in applications such as public works, transport and agriculture. IGOL PRO 400X is suitable for diesel engines with or without EGR, with or without particulate filter, and also for engines (anti-pollution standards: Euro VI - Tier 4 - Stage IV) equipped with an exhaust gas after-treatment system with the SCR (selective catalytic reduction) process using Ad-Blue.