Should the Highlander use 5w30 or 0w20 engine oil?

[McJackson]

The Highlander is better suited for 0w20 engine oil. The differences between 5w30 and 0w20 engine oils are as follows: Operating temperature range: 0W20 engine oil has a minimum operating temperature of -35°C, indicating its freezing point is -35°C. 5W30 engine oil has a minimum operating temperature of -30°C. Except for extreme northeastern China, 5W oil is suitable for all regions, so car owners need not worry about the oil's freezing point. The viscosity coefficient of 0W20 oil is slightly lower than that of 0W30 oil, meaning the engine experiences less internal resistance during operation, resulting in relatively lower fuel consumption for the vehicle. Lubrication performance: Generally, new cars can use 5W30 oil, which is the choice for most car owners. 0W20 oil is more expensive but offers superior lubrication. It adheres well to component surfaces, easily forming a stable lubricating oil film, and prevents abnormal wear on engine parts. This oil has strong stability, typically allowing car owners to drive over 12,000 km before maintenance. In contrast, 5W30 oil has higher viscosity and adheres well to component surfaces, making it commonly used for regular household vehicles with 30-grade oil.