ULTRA 10000 Plus 5W-40 is especially suitable for an extensive array of diesel powered commercial vehicles for both on-Highway Short-Haul and Long-Haul Trucks and Buses & Off-Highway Mining, Construction and Agricultural Equipment based on the latest API CI-4 specification. It also used in earthmoving activities (quarries, construction, mining, railroads, etc.) requesting API CI-4 or CH-4 level. It is recommended by for engines equipped with Ex-haust gas after-treatment system meeting EURO Stage IV (or US EPA Tier 4F) Standard and, for On-Road, EURO 5, as well as previous standards.