这一部门来自汽油的稀释另一部门来自粘度指数改进剂的耗损。
This is partly from dilution with blow by gasoline and partly from VI improvers being used up.
如果粘度指数改进剂耗损殆尽0w - 30的最终会变得更稀，像一个纯0粘度级的油一样。
If the VII wears out the 0w-30 will ultimately be thinner, a straight 0 grade oil.
机油厂家不得不添加粘度指数改进剂(VII)来解决这个问题。
The oil companies have added viscosity index improvers or VII to oils to solve this dilemma.
提出筛选粘度指数改进剂要经过柴油喷嘴和长时间FZG测试的建议。
Finally, selection methods of viscosity index improver through diesel jet nozzle and long time FZG experiments has been suggested.
考察了加入粘度指数改进剂对内燃机油运动粘度的影响。
The effect of viscosity index improvers on viscosity of engine oils was investigated.
寒区工业齿轮油理想添加剂应由粘度指数改进剂、降凝剂、S -P型极压抗磨剂、酚型抗氧剂及苯三唑脂肪胺盐等组成。
The ideal additives for industrial gear oil in cold area should be comprised of improver of viscosity index, pour point depressant, S-P extreme pressure wear inhibitor and benzotriazole fatty amine.
它不添加粘度指数改进剂也就不存在耗损。
There is no VI improver added so there is nothing to wear out.
结果证明多数粘度指数改进剂可提高油性极压剂的综合磨损值。
It is proved that most kinds of polymer additives can improve the composite wear value of oiliness and EP agent.
通常全合成机油不含粘度指数改进剂所以添加剂衰减情况轻。
Generally, the synthetic oils do not have VI improvers so have less to lose.
一些添加剂如抗氧化剂的开发和发动机油粘度指数改进使汽车日产维修期限从3000英里延长到6000英里再到12000英里。
Thus development of improved additives like anti-oxidants and viscosity index improves for engine oil has enabled routine servicing intervals to increase from 3000 to 6000 to 12000 miles.
简要叙述了T803B在不同粘度的石蜡基基础油和与不同粘度指数改进剂相匹配时的增粘降凝效果，并指出该剂的最佳经济适宜用量。
The effects of increasing viscosity and depressing pour point of T803B in paraffin base oils withdifferent viscosity while matching with different Vlls were described.
简要叙述了T803B在不同粘度的石蜡基基础油和与不同粘度指数改进剂相匹配时的增粘降凝效果，并指出该剂的最佳经济适宜用量。
The effects of increasing viscosity and depressing pour point of T803B in paraffin base oils withdifferent viscosity while matching with different Vlls were described.
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