10% from oil volume. BMP (BARDAHL MOTOR PROTECTOR) is a preventive and restoring oil additive for gasoline and diesel engines of heavy-duty machines. The additive restores sealing of all the piston and cylinder wall joints. The use of Bardahl Polar Plus technology guarantees high adhesion of the oil film to metal surfaces, thus ensuring reliable protection at engine idle run. BMP additive ensures reliable protection against deposits, and significant reduction of friction helps in additional fuel economy during all the operation period. Performance properties recover and the engine power increases. Restoration of the gaps between parts of the cylinder and piston group leads to significant reduction of oil burnout consumption, reduces engine smoking and prevents extreme environmental pollution. Laboratory tests have confirmed multiple improvement of the properties and resistance to extreme loads.