本文讲的不合适润滑油主要是指四冲程润滑油。目前市面上很多用户用的6号、10号、15号四冲程润滑油,少部分用SB级与SC级等四冲程润滑油。在80年代初期,由于国内摩托车二冲程发动机润滑油设有开发出采,迫不得已,国内很多公司曾选用了10号匹冲程润滑油代替二冲程油,对发动机的性能影响很大。国内在1985年以后,中石化总公司 This article describes the inappropriate lubricants mainly refers to the four-stroke lubricants. Currently on the market a lot of users with No. 6, No. 10, No. 15 four-stroke lubricants, a small part of the SB-class and SC-level four-stroke lubricants. In the early 1980s, due to the development and production of two-stroke engine lubricating oil for domestic motorcycles, many domestic companies had chosen No. 10 Porsche Lube instead of two-stroke oil to exert great influence on engine performance. Domestic after 1985, Sinopec Corporation