天长日久，机油、汽油及其它浓缩物在PCV阀内部沉积成油泥胶体，造成PC V阀堵塞，从而提高了曲轴箱内部的气体压力。
After a considerable period of time, oil, gas and other PCV valves in its internal deposition, PCV into clay colloid valve jam, thereby improving the crankcase internal gas pressure.
优异的清净分散性、低温启动性、粘温性能及氧化安定性，有效控制发动机油泥和活塞环沉积物。
Excellent dispersion of clean, low temperature start, and viscosity-temperature properties and oxidation stability, effective control of engine oil sludge and piston deposits.
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