What grade is Apisn engine oil?
2 Answers
Apisn engine oil refers to the highest grade of engine oil. Here are the relevant details: Engine oil quality grades: Engine oils are classified into different grades based on their quality levels. The grade standard for engine oil is denoted by the English letter S, such as SE, SF, SG, SH, SJ, etc., each representing a different grade of engine oil. The lower the alphabetical order, the higher the oil grade. Engine oil viscosity classification: Based on viscosity, engine oils can also be categorized into high-temperature environment types and low-temperature environment types. The labels for high-temperature environment types are SAE30, SAE40, and SAE50. The number marked after SAE indicates the viscosity of the engine oil at 100 degrees Celsius. The larger the number, the higher the viscosity of the engine oil.
API SN represents the American Petroleum Institute certification grade for gasoline engine oils. This standard primarily targets gasoline vehicles produced after 2010, especially those equipped with direct injection or turbocharging technologies. Compared to the previous SM grade, SN grade enhances high-temperature deposit control capabilities while also improving piston cleanliness and turbocharger protection. Many mainstream oils such as Mobil 1 and Shell Helix Ultra meet this standard. When selecting oil, don't solely rely on API grade - also consider SAE viscosity ratings. Vehicle manuals typically specify recommended oil specifications. For cold northern regions, 0W-XX oils with better low-temperature fluidity are recommended. For older vehicles switching to new oil, transitional treatment is advised, such as performing an oil system flush before first use.
