Should the 2019 New Santana use 5w30 or 5w40?

[Sean]

The New Santana is better off using 5W40 during the break-in period. 5w40 oil viscosity: 5w40 oil has a relatively higher viscosity, which can more effectively reduce wear between engine components. When changing the oil, it's important to pay attention to the oil's viscosity. If the viscosity of the oil being replaced is not suitable, an oil with too low viscosity can lead to insufficient oil pressure, inadequate lubrication, and increased friction between engine parts. How to choose car oil: In theory, higher temperatures require oil with higher viscosity. However, the oils currently available on the market have changed significantly compared to traditional usage habits. For example, SL-grade synthetic oils contain anti-high temperature and anti-oxidant additives, giving them the ability to thicken when hot and thin when cold, making them known as all-weather or four-season oils. Low-viscosity oils like 5W30 or 10W30 have good adaptability even during the high-temperature summer months.