Gulf Supreme Duty ULE is premium performance heavy duty diesel engine oil specially developed for use in ultra low emission engines meeting the latest US and European emission standards. This oil addresses the unique needs of the latest engines and enhances the life of exhaust after treatment devices. It is formulated with state-of-the-art additive technology and severely hydroprocessed base oils to provide excellent performance and overall protection having a potential to offer extended drain intervals. It meets the performance requirements of API CK-4 service category. It is also backward compatible for the use in older engines requiring API CJ-4 and below quality oils.

ACEA E9, API CJ-4, CES 20086, DDC 93K222, API CK-4, Volvo VDS-4.5; Mack EOS-4.5; Renault VI RLD-3

• Latest high performance low emission heavy duty diesel engines including those equipped with DPF and Exhaust Gas Recirculation (EGR) and meeting the latest US and European emission standards.
• On-highway vehicles and off-highway equipment operating in severe low speed/heavy load conditions using either low (500 ppm) or ultra low (15 ppm) sulphur fuels.
• Suitable for the use in earlier engine models requiring API CJ-4 and below quality oils.

• Outstanding thermal and oxidative stability reduces low-temperature sludge build-up, high-temperature deposits and oil thickening
• Excellent soot handling capability minimizes soot related viscosity increase and leads to longer engine oil life
• Superior shear stability maintains viscosity in severe service conditions and leads to improved wear protection.
• Exceptional TBN retention resists harmful effects of corrosive exhaust gases and extends oil life
• Low ash content reduces particulate build-up in Diesel Particulate Filter (DPF) and enhances its life.