... lubricating systen, which it is si Lubricating oil system of engine cleanerTechnical parameterAir pressure : 0-100 psl weight :24.5 kg ... appear oil sludge and accumulate carbon,impurity shed reach oil set,taken out to remove automatically with the vacuum by this ... then improve mechanical movement efficiency,resume perfor-mance of the engine, length engine service life. sell Lubricating oil system of ...