What type of engine oil is suitable for the Volkswagen Tiguan L?

[MaciFitz]

The Tiguan L can use 5W-40 engine oil. Here is some relevant information: 1. Function: The main functions of engine oil are lubrication, cleaning, and heat dissipation. In terms of types, it can be roughly divided into three categories: conventional, semi-synthetic, and full-synthetic. When changing engine oil, any oil without the word "synthetic" is considered "conventional." 2. Oil degradation: Engine oil degrades over time. "Conventional" oil generally starts to oxidize after about 3 months of exposure to air, reducing its effectiveness. This means that if you don't drive for 3 months after changing the oil, you should change it again. Synthetic oil degrades in about 6 to 9 months. For driving conditions in China, engine oil typically starts to degrade after about 5,000 kilometers.