What grade is SPGF6A engine oil?
1 Answers
SPGF6 is an S-grade engine oil. Engine oil grades are typically classified by viscosity and quality. Engine oil quality classification: API quality classification: The "S" series represents oils for gasoline engines, with specifications including SA, SB, SC, SD, SE, SF, SG, SH, SJ, SL, SM, and SN. The "C" series represents oils for diesel engines, with specifications such as CA, CB, CC, CD, CE, CF, CF-2, CF-4, CG-4, CH-4, and CI-4. When both "S" and "C" letters are present, it indicates that the oil is suitable for both gasoline and diesel engines. From "SA" up to "SN," each subsequent letter indicates better performance than the previous one. The further the letter is in the alphabet, the higher the quality grade, making the engine oil more effective. Viscosity classification: SAE viscosity classification: For example, 15W-40 is its SAE standard viscosity value, indicating that the oil is a multi-grade oil. "W" stands for WINTER, and the number before "W" represents the oil's flow performance at low temperatures. The smaller the number, the better the starting performance in cold conditions. The number after "W" represents the oil's stability at high temperatures (i.e., its resistance to thinning). The larger the number, the better the high-temperature stability of the oil.