Customer: Logistics company, Port of Klang, Malaysia System: Harbour cranes Lubricant: Gear oil Challenge: Aggressive salt and high humidity: Harbor cranes operate under corrosive conditions that affect their service life. Added to this are changing load conditions caused by loading and unloading as well as lifting and lowering the bucket. Different material densities occur when handling raw materials such as coal, construction materials such as gravel, or foodstuffs such as grain. They pose a number of challenges for operator and machine under which the mineral industrial gear oil (ISO-VG 220) used before had to be changed annually. ADDINOL Product: Gear oil ADDINOL Eco Gear 220 M Result: In order to ensure the performance of the bulk material cranes and the longevity of the stressed gears in the port of Klang the high-performance industrial gear oils of ADDINOL Eco Gear Series M were applied and analytically accompanied. Oil samples were taken after 8, 21, 34 and 46 months and examined by an independent laboratory. The engineers of the ADDINOL application technology evaluated the laboratory reports according to typical key figures such as viscosity, oil oxidation and impurities like water content and wear elements. The viscosity remained stable over the application time and was still within the predefined range for ISO VG 220. Oil oxidation and neutralisation number were on a low level. Unusually high levels of contamination, such as from dust or dirt, were not detected. With 3 ppm iron, almost no wear elements were detected either. Due to the excellent condition of oil and gearbox, the oil life was extended by another 12 months. The next oil test as well as diagnosis will be carried out after a total service life of 60 months. By switching to ADDINOL Eco Gear M the operator of the harbour cranes saves the costs for oil change and fresh oil which had been incurred annually so far. In the meantime costs for four oil changes as well as for 340 liters of fresh oil were saved by the application of ADDINOL Eco Gear M. Moreover, the operator had no lubrication-related downtimes in the last 48 months.