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What is the difference between Mobil 1 SN and SP?

1 Answers

EmmettLynn

07/29/25 10:11am

The differences between Mobil 1 SN engine oil and SP engine oil mainly lie in phosphorus content, grade, and oil film. The specific differences are as follows: Phosphorus content: The difference between SN and SP engine oils lies in the thickness (or viscosity) of the oil at a certain temperature, which can also be described as the difference in phosphorus content. Mobil SP has a phosphorus content greater than 800ppm, while Mobil SN has a phosphorus content less than 800ppm. Grade: SP represents the quality grade of engine oil. SG, SJ, SL, and SM are all grades of gasoline engine oil, with SN being the second grade and SP being the highest grade currently available. The higher the grade of the engine oil, the better its technical indicators, which can extend the engine's service life, oil change intervals, and maintenance cycles. For most car owners, SM-grade engine oil is sufficient for daily use. Additionally, M-grade engine oil offers better oxidation resistance, deposit control, and wear protection, ensuring fuel economy and long-lasting performance. Oil film: Comparing the viscosity of SN and SP, SP has a slightly higher viscosity, indicating that SP's oil film is stronger than SN's, providing better protective performance. Furthermore, SP offers stable improvements over SN in terms of noise reduction, fuel consumption, and acceleration performance.

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