What is the difference between SN grade and SP grade engine oil?
1 Answers
The differences between SN grade and SP grade engine oil are as follows: 1. Viscosity (phosphorus content) differs: SN oil has less phosphorus content; SP oil has more phosphorus content. 2. Different grades: SN is the second grade of engine oil; SP is the highest grade of engine oil. 3. Oil film: SN has a weaker oil film; SP has a stronger oil film, providing better protective performance. Additionally, SP offers stable improvements over SN in terms of noise reduction, fuel consumption, and acceleration performance. 4. Protective performance: SN has average protective performance; SP has stronger protective performance.