Sae 15w-40 motor oil Sea horse 15w-40 is multigrade engine iol formulated from highly refined conventional base oils together with carefully selected additives. Designed for use in gasoline and diesel engines. It ensures perfect protection and minimum oil consumption whilst maintaining constant oil pressure witout foaming under all seasons and driving conditions. It provides high engine protection and good resistance against wear and corrosion by preventing carbon and deposit formation. It is used for turbocharged engines.