What does SP/GF-6 mean for engine oil?

[DeKatherine]

GF-X grade is an engine oil quality certification standard established by the International Lubricant Standardization and Approval Committee. This standard places greater emphasis on fuel economy, hence generally requiring lower viscosity. The number following GF is generally considered to correspond to national emission standards, with GF-6 commonly referred to as China VI. Function of engine oil: The engine is an indispensable part of a vehicle, and engine oil is an essential component for the engine, highlighting its crucial role in automobiles. Timely replacement of engine oil: Regarding engine oil requirements, each vehicle model has its own compatible oil specifications, which can be found in the car's user manual. If the engine oil has been used for an extended period, it is imperative for the owner to replace it promptly. Prolonged use causes the oil's viscosity to decrease, leading to a corresponding reduction in lubrication effectiveness. This diminishes the oil's ability to lubricate and protect the engine, underscoring the importance of timely replacement.