Circulatory, total loss and gear systems, where a non EP oil is specified. The lower viscosity grades are frequently used in recirculating and total loss lubrication systems. Certain grades are also suitable for use as mould release oils in the cement / concrete industry, for use with steel and fibreglass moulds. The heavier grades may be recommended for industrial and automotive worm gear and reduction gear units where non EP oils are appropriate. The product may be used where gear oils to API GL1 are required.