What is ln052167f4 engine oil?

[McBrooke]

Volkswagen LN052167F4 is a FAW-Volkswagen (Volkswagen) genuine 5W-40 gasoline engine oil/lubricant. FAW-Volkswagen genuine engine oils are divided into three viscosity grades: 5w-40, 0w-40, and 5w-30. Among them, only 0W-40 and 5W-30 are fully synthetic oils, while 5W-40 is a semi-synthetic oil. Below is relevant information about gasoline: 1. Compression ratio: The type of gasoline to use depends on the engine's compression ratio. Generally, the lower the compression ratio, the lower the fuel requirements. 95-octane gasoline is purer than 92-octane gasoline, as indicated by the higher number representing higher purity. Using a higher octane gasoline indicates a higher engine compression ratio. 2. Anti-knock performance: 92-octane gasoline contains 92% isooctane and 8% n-heptane, while 95-octane gasoline contains 95% isooctane and 5% n-heptane. This ratio difference affects their anti-knock properties. 92-octane gasoline is more prone to knocking, meaning it has poorer anti-knock performance, requiring the spark plug's ignition timing to be delayed to prevent knocking, resulting in relatively weaker power. In contrast, 95-octane gasoline is less prone to knocking, allowing the computer to control an earlier ignition timing, thus providing relatively stronger power.