通过 1 0W / 30SG和 1 0W / 30SH汽油机油高环行车试验 ,探讨了高档轿车使用高档汽油机油在高温高速情况下的使用性能。从两次高环行车结果可知 ,在 40℃运动粘度增长方面 ,与Seq .ⅢE发动机台架程序评定有一定的相关性。总的说来 ,行车试验可变因素较多 ,在一定程度上影响到试验的准确性 ,但在尚未建立标准发动机台架的情况下 ,行车试验可以作为考察油品质量使用性能的一种有效的手段。 Through the high cycle test of 1 0W / 30SG and 1 0W / 30SH gasoline engine oil, the performance of high-class passenger car using high-grade gasoline engine oil at high temperature and high speed was discussed. From the results of two high-cycle vehicles, we can see that there is a certain correlation between the increase of kinematic viscosity at 40 ℃ and the evaluation of Seq. ⅢE engine bench program. In general, there are more and more variables in driving test, which may affect the accuracy of the test to a certain extent. However, if no standard engine bench has been set up, the driving test can be used as an effective test of oil quality performance s method.