RUBIA WORKS 4000 15W-40 is recommended for engines equipped with Exhaust gas after-treatment system meeting EURO Stage IV (or US EPA Tier 4F) Standard and, for On-Road, EURO 6, as well as previous standards. RUBIA WORKS 4000 15W-40 is particularly suitable for American, European and Japanese engines This lubricant withstands very long working periods under severe conditions and high load, with dust and heat