What is the grade of SJ engine oil?

1 Answers
VonMargaret
09/03/25 6:01am
SJ grade is one of the API quality grades, corresponding to engine oil specifically for gasoline vehicle engines. The SJ standard was established in 1996, making it over twenty years old, and is considered a relatively outdated engine oil grade that is gradually being phased out or upgraded. SJ oil does not belong to the category of semi-synthetic oils and is essentially mineral oil. Below is more information about engine oil grades: 1. Quality Grades: API classifies engine oils into the S series and C series, with the S series indicating oils specifically for gasoline vehicle engines. 2. Gasoline vehicle engine oil models include SA, SB, SC, SD, SE, SF, SG, SH, SJ, SL, SM, SN, and SP, with the latest being the SP grade, which is several grades above the SJ level.
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