ARMOR MEDIUM 30″
System oil for marine crosshead diesel engines with sufficient alkalinity to neutralise any strong acids, which may enter the crankcase from the combustion of fuel. It has enhanced load-carrying ability in order to reduce wear in heavilyloaded bearings. Recommended for use as a system oil in high-output, crosshead diesel engines, as well as a piston cooling medium. It can be used in small trunk piston engines whose fuel contains less than 0.5% in sulphur.