What is the difference between SL and SN engine oil?
1 Answers
The differences between SL and SN engine oil are: 1. Different oxidation resistance and wear resistance under high-temperature and high-speed operating conditions: SL has lower high-temperature detergency, lower oil oxidation stability, and lower wear resistance; SN has higher high-temperature detergency, higher oil oxidation stability, and higher wear resistance. 2. Different environmental protection levels: SL has a lower environmental protection level; SN has a higher environmental protection level. 3. Different quality levels: SL has lower quality; SN has higher quality. 4. Different quantities of available oil grades: SL has fewer available oil grades; SN has more available oil grades.