The product is made from hydroxy fatty acids lithium soap thickening high-grade basic oil and high-performance additive.

本产品由羟基脂肪酸锂皂稠化高级基础油并加入高效添加剂制成，是城市地铁轮轨的专用润滑脂。

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Not too long ago the BLS assumed that the price of gasoline went down because of the use of a new additive that improved performance.

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The main substance believed to have responsible for the deaths is PIB, which is used as a lubricating additive in oils to improve performance.

BBC: Calls to stop PIB discharges at sea after bird deaths