Should I Choose 0W20 or 5W20 for Corolla?

[ElizabethRose]

Whether to choose 0W20 or 5W20 for Corolla depends on the usage environment: If the local winter is extremely cold with low temperatures, 0W20 offers better cold-start performance than 5W20; If you are in the relatively mild climate of the south, 5W20 is sufficient. Below is relevant information about engine oil: 1. Label meaning: "W" stands for winter, and the smaller the number before it, the better the low-temperature fluidity of the oil, indicating a lower usable environmental temperature and better engine protection during cold starts; The number after "W" (after the dash) is an indicator of the oil's high-temperature resistance, with higher values indicating better protection at high temperatures. 2. The difference between 5W-20 and 0W-20: The stronger the oil's fluidity at low temperatures, the better its cold resistance. The viscosity at 100℃, higher numbers represent higher viscosity, indicating different high-temperature resistance capabilities.