国产精品拍国产拍拍偷剧情_日韩精品一区二区三区在线播放_韩日精品在线日韩99_无码精品毛片一区二区三区亚洲_日韩综合欧美在线影院_2021亚洲国产中文精品无码_日韩黄色视频大全_动漫亚洲人成在线_日韩高清综合中文字幕视频_国产三级精品三级观看

司能石油化工有限公司

Search

Service & Application

1、 Principles for selecting diesel engine oil:

    1. Based on vehicle characteristics, load, speed, etc.
    2. Select oil based on recommendations from car manufacturers.
    3. Based on engine usage.
    4. Select oil products with a quality level higher than the requirements.
    5. Generally, 15W/40 oil can be used year-round in areas south of the Great Wall.
    6. If the engine is used for a long time and there is some wear and tear, choose oil with higher viscosity to prevent insufficient oil pressure