What is the difference between engine oil SN, SP, and SL?
1 Answers
The differences between engine oil SN, SP, and SL are as follows: 1. Different phosphorus content requirements: SN-grade engine oil has particularly high requirements for phosphorus content, even being phosphorus-free; SL-grade engine oil only requires phosphorus content not to exceed 0.1%, with very high demands on phosphorus content. 2. Different quality grades: Engine oil quality grades are classified into SG, SJ, SL, SN, SM, and SP, with SP being the highest grade for gasoline engine oil currently. The higher the grade of the engine oil, the higher its various technical indicators. 3. Different prices: Depending on the quality grade, the higher the quality grade, the higher the market value.