Product features: Delo® Gold Ultra is a high performance, multigrade, heavy-duty diesel engine oil specifically designed to lubricate a wide range of engines requiring API CI-4 or ACEA E7 performance lubricants, including those fitted Selective Catalytic Reduction (SCR) and / or Exhaust Gas Recirculation (EGR) emission control technologies. Delo® Gold Ultra is formulated with ISOSYN® Technology to provide exceptional soot dispersancy, deposit control and wear protection.