进口新车发动机汽缸和活塞的加工精度较高，机油消耗可以达到0.1-0.2g/kwh，德系车的机油消耗要比日系车偏大。国产车的机油消耗原设计值是0.5-2.0g/kwh，如今机油消耗水平正逐渐接近国外水平。
你提到的4点也是机油消耗的原因。
The four points you mentioned are the other options for oil consumption.
超强抗氧化性，极大延长油品换油周期，降低机油消耗。
Powerful antioxidant activity, significantly extended oil drain intervals and reduce oil consumption.
经试验实测，柴油机性能改善，燃油消耗率、机油消耗率有明显降低。
Tests showed that the engine performance, fuel and oil consumption were improved.
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