东风EQ140型汽车发动机使用15号汽油机油适应性试验

Adaptability Test of Number 15 Oil Used in Dong Feng Model EQ140 Truck Engine

以汽车可靠性理论为依据，通过对10台东风EQ140型汽车发动机使用15号汽油机油的跟踪统计，探索在实际使用过程中，这10台试验车的使用寿命。经过分析后认为，使用15号汽油机油的可靠度为36．41％，特别是在运行条件较苛刻地区，使用15号汽油机油是不可取的。

The service life of Dong Feng model EQ140 trucks has heen explored in accordence with the reliability theory of automobile and by statistics in tracking the ten testing trucks in their practical operation with mumber 15 gasline engine oil used in the truck engines. The study shows that the degree of reliability when using No. 15 oil is 36. 41 percent,therefore it is unadvisable to use No. 15 gasoline engine oil in this case,especially in harsh operating environment.