两者低温性能一样,差别是高温性能,最后两位数字越高越适合高温

来源: 2024-02-28 16:50:50 [博客] [旧帖] [给我悄悄话] 本文已被阅读:

https://www.energy.gov/energysaver/motor-oil-grades-and-classifications-explained