Should the Bora naturally aspirated engine use 5w30 or 5w40?
1 Answers
The Bora naturally aspirated engine is more suitable for using 5w30 engine oil. The introduction and functions of 5w30 engine oil are as follows: Introduction to 5w30 engine oil: 5w30 represents the grade of the engine oil. 5W can withstand low temperatures of -30 degrees. The number before W represents the low-temperature fluidity of the engine oil, and the number after W represents the high-temperature viscosity of the engine oil. Grades include SAE20, 30, 40, etc. The larger the number, the higher the viscosity. Functions of engine oil: Engine oil not only lubricates the engine but also cleans, seals, cushions, prevents rust, and dissipates heat. When the engine is running, the engine oil forms a film on the surface of various components inside the engine, preventing direct contact and friction between these components.