Blended from hydrocracked base stocks and a state-of-art additive package, United Hydro 800 Diesel Engine Oil is truly a universal lubricant required for EPA 2007 compliant diesel engines equipped with after treatment devices such as diesel oxidation catalysts and particulate filters. It also meets the latest European ACEA standards and American API performance. This means United Hydro 800 Diesel Engine Oil is simply the top player for both the modern North American engines and the top tier European engines.