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Is engine oil changed during the first maintenance?

1 Answers

DamianRose

07/29/25 4:40pm

The first maintenance includes an engine oil change. It is recommended to use the standard original equipment manufacturer (OEM) oil as suggested by the manufacturer, as OEM oil is specifically designed to fully match the vehicle model. The selection of oil grade and precautions are as follows: Selection of oil grade: The oil grade essentially represents the oil's viscosity, which can be divided into low-temperature viscosity and high-temperature viscosity. Low-temperature viscosity affects the engine's starting ability in cold conditions, while high-temperature viscosity influences the protection of engine components during operation. The oil grade is demarcated by the letter 'W'; the number before 'W' indicates low-temperature viscosity, and the number after 'W' represents high-temperature viscosity. A smaller number before 'W' means better viscosity at low temperatures, enhancing the engine's cold-start capability. A larger number after 'W' indicates higher viscosity at 100 degrees Celsius, forming a thicker oil film on engine components. However, higher high-temperature viscosity is not always better, as it increases the movement resistance of engine parts. Choose based on actual conditions. Precautions for using engine oil: Engine oil and diesel cannot be used interchangeably. It goes without saying that they cannot substitute for each other due to their differing chemical and physical properties. Different fuels have different requirements for engines, and substituting one for the other would result in wear or damage to either the gasoline or diesel engine. Unless there is a special note indicating that both fuels can be used interchangeably, substituting one for the other will have minimal impact.

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