Unioil Delux 500 is a high performance, special blend multigrade engine oil designed to protect diesel powered engines from severe on and off-highway conditions. Formulated with advanced additives that help the oil perform in a full range of temperatures and pressures found in both old and modern engines. • Delivers effective protection against oil oxidation and degradation thus prolonging oil service life • Contains active detergents that clean vital engine parts and remove sludge, soot and carbon deposits • Enhanced engine protection against all types of wear in critically loaded components • Formulated for extended drain interval to maximize cost • Backward compatible for older engines to maintain peak performance Typical key characteristics • Viscosity grade: SAE 15W-40 • Performance level: Meets API CI-4 standard