Lubricant perfectly suitable for engines as well as gearboxes built between 1900 and 1950. Mineral monograde lubricant with very low detergent level for a complete compatibility with paper / felt / fabric gaskets. Small detergent level avoids soot and deposits removing in the lubricating circuit. Can be used as break-in oil if drain intervals are shorten. Complete compatibility with nonferrous metals as brass, bronze, copper. Reinforced adherence for easier start even after a long period of immobilization.