LYE series is designed for recycling kinds of engine oil used in ships, cars and other vehicles. It not only can remove the carbon particles, deep oxides, etc., but also can filter off the harmful matters such as colloid, bitumen. After treated by the machines, the oil color looks like the new and the quality indexes are improved also, so as to resume the performance of engine oil, keep the engine being lubricated, guarantee lubricating system of engine to work properly and prolong service life of engine oil.