| 摘要 |
The invention relates to a multipurpose additive composition for hard duty conditions. According to the invention, the composition consists of 5...36% succinimide, 22...82% dialkylphosphate, 15...42% sulphurized isobutene, 0.1...0.2% polymethylxyloxane, possibly 5......25% refined mineral oil, of the ISO-VG 68/100 viscosity class, the percentage being expressed by weight.
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